In The News by Neil Postman, organizational structures are the order of information and idea. An organizational structure is characterized as “a system that is used to interpret the order in an organization”. It recognizes each job, what its functions are and where it should report in an organization.
Prufrock was a person who avoided opportunities for change.
I phoned him because he was not home.
The second part of the sentence is now dependent on the first as it cannot stand alone as its own sentence.
The answer is a. President.
The word President is the predicate nominative here, also known as predicate noun.
A predicate noun is a word which renames the noun that has been mentioned in the sentence. In this case Franklin Roosevelt is the noun that has been renamed as "President", which makes it the answer to the question.
Another example in : My brother's favourite food is pizza.
The predicate nominative in the sentence is Pizza. because that is the word that is replacing the earlier mentioned noun, which was "food".