Meanings are in words, not in people them selves.
a. true
b. false

False.  Words are meaningless unless the people who utter them are mean what they say.  That means that words alone are not enough. People need to act on what they say.  Only then can the words that they have real meaning.

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.