3. Which phrase best describes the parts of sentences linked together by coordinating conjunctions?
a. One part is always longer than the other
b. The two parts are equal
c. One part is always less important than the other
d. One part always contains a proper noun, and the other
part doesn't

b

Explanation:

it's always placed besides words of equal rank!

halibut, flounder, tuna, and trout are all fish. so your first answer is 1.) fish. and since fish is edible, your next answer would be 3). edible

to describe those fishes more thoroughly, some of those fishes live in fresh water, and some of the fishes live in salt water, and that is not a thing that they all have in common. the question is asking what is common with all of the fish, so answer choices 2). fresh water and 4). salt water are not right.