The answer is: Except for A) Researching the background of the author.
It is not necessary for you to know the background of the author for you to comprehend a memoir.
Destroyed
are built
ate
left called
cooked vacuumed
visited
painted
Present perfect tense. Have washed is the verb, Have or Has is used to show an action that has taken place in the present, not quite long or is still taking place
Its something in a poem that sounds the same in two different lines. Like sing and ring. Hope thus helps.