This is false! a flash card is there to help you learn a concept if you fill it up just to make it full it may give you information that is false and make you fail when someone asks you the question and you answer what you learned from that card
The third one, roundabout answer.
I'm assuming the underlined conjunctions are <em>both </em>and <em>and </em>(because you didn't underline any, and those are the only two conjunctions in the sentence).
Those conjunctions are called correlative conjunctions - this means that they are connecting two items which are equally important. So, this woman saw both Billie Holiday and Ella Fitzgerald - and both of those artists are important to the woman.