The best answer to this is B option. This is an oxymoron. An oxymoron is a contradictory phrase.
This is speculation, so please get a second opinion.
I think it's c, because the adults, in this passage, are teaching children how to behave, and therefore a and b are ruled out. d could have possibly been one, but I think that it would not be, because the adults are not explicitly setting clear examples for their children.
Again, you should get a second answer before you answer this.
A. immediately
which means: at once, instantly
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>
