The word "audible" means able to be heard. "Loud and clear" is the best choice as it not only means able to be heard, but also is the only choice that refers to something that can be heard. 

"Audible" means able to be heard. To further help you, able to be seen can be expressed using the word “visible.” Able to be eaten can be expressed using the word “edible.”

"Tangible" means able to be physically felt or touched, so "touchable" is the correct answer.

"Delectable" and "delicious" are synonyms, each meaning pleasant-tasting. "Unpalatable," "disgusting," and "putrid" are antonyms, or opposites, of "delectable" and "delicious."

Something that is "vivid" is very colorful or noticeable. To further help you, "intermediate" means middle level, medium; "mediocre" means average or not very good; "approximate" means guess.

Don't get this word confused with "horse," the animal! "Hoarse" means raspy or rough-sounding, especially when describing someone's voice. You've probably had a hoarse voice after getting a sore throat. "Smooth" means even or free of bumps; "artistic" means talented at art or creative activities, and "mountainous" refers to areas of land and means containing mountains.

"Frigid" means very chilly or cold. Therefore, the best synonym for "frigid" is "cold." While "snow" is cold, it is a noun, and does not mean the same thing as "frigid." "Different," "straight," and "solid" are each unrelated to the word "frigid." Therefore, "cold" is the best answer.

The word "rancid" originally comes from the Latin for "stinking." This is still reflected in the strict sense of the word, for "rancid" generally is used to describe food that has taken on a bad odor or taste because it is old. While this might mean that the food is merely stale, generally speaking, a bad taste only happens because of rotting or something of the like. Therefore, among the options provided, the best answer is "rotten," which most likely describes food that is rancid. Do not be tricked by the word "obnoxious." In a sense, something that is rancid is obnoxious, in that an obnoxious thing is unpleasant (as is something rancid). Still, "obnoxious" is very general in its meaning, whereas rancid applies to something food-related. Therefore, "rotten" is a better answer.

While all four of these answer choices are adjectives, only one shares its meaning with "raucous," which is often used to describe loud, discordant, overly rowdy situations or groups of people. Here, "noisy" is our best answer. "Silent" and "melodic," both of which also relate to sound, are near antonyms. Something that is "silent" makes no noise at all, while a "melodic" sound would be musical and pleasant, not harsh or unpleasantly loud. "Melancholy" describes a deeply sad or depressed mood and can therefore be eliminated, and "sharp" describes pointed ends or well-honed edges that can prick or split things.

A “fever” is a type of sickness or illness in which one feels very hot, tired, and physically weak. If one is "feverish," one is "hot."