Question

the root phon, meaning \sound,\ indicates that the word symphony most likely means
\a large meal.\
\a beautiful view.\
\a musical concert.\
\a fragrant bouquet.\

Explanation:

The root "phon" means "sound". A symphony is related to sound. A musical concert involves sounds (music). A large meal (related to food), a beautiful view (related to sight), and a fragrant bouquet (related to smell) are not related to the root "phon" (sound).

Answer:

"a musical concert."