Answer:
We use did in past simple tense
and could as past ability to do smthg or to express posibility to make suggestions and request
C. Sea horses are very unusual fish.
The word "fish" is a predicate nominative in letter C sentence. This is because a predicate nominative, also known as subject complement, is a noun or pronoun that follows a linking verb and renames the subject.
Sea horses - subject; are - verb; very unusual - adjectives; fish - predicate nominative.
A - Fish - subject
B - will fish - verb
D - fish - object
Elie Wiesel wasn’t really passionate about religion he thought god as a not careing. To further elaborate he said “if gods a supreme being why are people dying in concentration camps.