"mama," wangero said sweet as a bird. "can i have these old quilts? " i heard something fall in the kitchen
and a minute later the kitchen door slammed
maggie is afraid to be left alone with hakim-a-barber.
maggie is upset that wangero has asked for her quilts
maggie is clumsy and uncoordinated.
maggie envies her sister, and is anxious for her to leave.

Maggie is upset that Wangero has asked for her quilts

Explanation:

We can see from the passage that Maggie is feeling upset or angry because the second that Wangero asked for her quilts, she starts to do something in the kitchen. She slammed the kitchen door so the others can see and feel her emotions of anger.

She is trying to show that to her mom and by that, she thinks that her mom would save her quilts because of her anger. That is why she is showing that she is upset.

to eliminate ambiguous remote or broad reference it is necessary to focus on anaphoric reference. by definition "anaphoric reference means that a word in a text refers back to other ideas in the text for its meaning." the references should be clear and leave no room for ambiguity.

in the first case the pronoun it probably refers to the car but it has not been mentioned before so we should replace it for the car. in doing so the statement becomes clear.

in sentence number   two   the pronoun he refers to charles dickens the author. yet, the first half of the sentence is about the book a tale of two cities. to repair this it would be better to rephrase the first half : after i read   a tale of two cities by dickens, he so as to remove the remote reference.