The group of words that will describe the subject.
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.
<span>The predicate nominative in the sentence is Pizza. because that is the word that is replacing the earlier mentioned noun, which was "food". </span>
I think it is C because A is missing commas, B doesn't need them and D doesn't need one.
Third person POV
because you only know what happens by physical observation, you can't see their thoughts.
Hope this helps baiiii <3