Answer and Explanation:
The phrase presents itself as a proverb expressing a meaning of equality between people who adopt the characteristics of a specific group of people and who must assume the archetype of that group, completely equaling its members. This means that when a person, of his own free will, wants to eat like normal people, that person is equaling normal people and therefore must take possession of this archetype and work just like them.
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>
Your answer is D, he never works when feld is in range