You went to the bed early.
She studied in the library.
They had dinner last night.
He felt sad yesterday.
True, the suffixes able and ible do mean able to
The purpose of informational text is to inform the reader on a certain topic or idea, hence the word "inform" in informational.
I wouldn't say that the Capulets (or the Montagues, for that matter) are complex characters. They are there merely to advance the plot of the play, and to cause the tragic events which occur in the end. We don't really know much about either of the families, except for the fact that they have always had a particular feud and are therefore sworn enemies. They do act as a villain in the play, given that it is basically because of them that their children die because they weren't allowed to love each other.
I think you can tell the answer is odd because the multipliers are odd.