Which sentence uses comparison correctly? a. which tastes gooder to you, a hearty soup or a fresh salad? b. which tastes best to you, a hearty soup or a fresh salad? c. which tastes more better to you, a hearty soup or a fresh salad? d. which tastes better to you, a hearty soup or a fresh salad?

D is the only one that follows conventional grammar rules.

The rest are wrong because...

A- gooder is not a word

B- you are only comparing 2 things so you would say best, you would say better. The rule is 'good, better, best.' Best is only used to compare multiple things

C- You already said better so you don't need another adjective, more, to support that

Despite the overwhelming body of academic work on the civil war produced in the united states (and beyond) most of the american public (as well as the international audience) has been exposed to it through cultural texts such as novels, poems, songs, motion pictures, tv series, and documentaries.