1.A
I only know the first one and it’s A
1- ( a ) major points
2- ( b ) something to think about
3- ( a )
A dialogue is a conversation between people and a monologue is when a person, usually a character in a play, etc is talking to themselves ie. they are musing, telling the audience their feelings and thoughts, etc :)
Biographical aid is the answer. Hope this helps. :)
