It depends on which word is underlined.
If the underlined word is <em>boat, </em>then it is used as A. predicate nominative in this sentence.
A predicate nominative is a noun following a copulative/linking verb.
The linking verb in this sentence is <em>is, </em>and the noun following it is <em>boat. </em>
Answer:
She ushers the kids inside, and when Dicey explains who they are, Eunice explains their relationship: Cilla is Abigail Tillerman's sister, and Abigail Tillerman is Momma's mom. ... Eunice again mentions Abigail Tillerman, who lives in Crisfield, Maryland, and Dicey firmly commits information about her to memory.
Explanation:
He knows that he is the god of the sea and he wants to get to know him better but he can't