Can you be more specific?
I would say A is the right one
I didn't understand what you meant by "underlined words" because there aren't any underlined words, but here's the sentence rewritten:
Often, we are invited to the parties.
A Theme is a Message the the Author wants to get across to his readers
A Central Idea is a element in a story that ties together the imformation
I Hope the Helps
√ Dante√
