The clairvoyant principal always seemed to know when trouble was afoot.
A because a marlin is a fish and fish swim.
D would be your answer. An idiom is basically a metaphor such as "jumping the gun" or "sick as a dog"
<span>The sentence “Jason and
Raci like to read the same books.” contains a
compound subject.</span>
<span>To add, </span>compound
subject<span> <span>is two or
more individual noun phrases coordinated to form a single, longer noun phrase. </span></span>Compound subjects<span> <span>give rise to many obstacles in the proper usage
of grammatical concurrence among the </span></span>subject<span> <span>and other entities (verbs, pronouns, etc.).</span></span>