How does the exchange between the cabuliwallah and mini propel the action in this story? mini's mother forbids the child from speaking with the cabuliwallah. mini's father and the cabuliwallah exchange stories about the past. it sparks a unique relationship between the man and the child. it raises concerns in the neighborhood.

It sparks a unique relationship between the man and the child.

We know that Mini was a chatty child and although at first she feared the Kabuliwallah, she quickly made friends with him. They had a child-like banter that made Mini laugh with delight, something her father felt was strange for a man. We later learn that the Kabuliwallah had a daughter back in his own country. This relationship is quickly forgotten while the Kabuliwallah is in jail and when he returns, he realizes it will never be the same again and that is own daughter is older now as well.

B). Their.

Explanation:

As per the question, the word 'their' completes the given sentence correctly as it is syntactically and semantically the correct pronoun to denote the plural antecedent 'Jon and Tucker' and accomplish the meaning and grammar of the sentence appropriately. The final sentence reads as:

'Jon and Tucker walked for miles in the hot sun, carrying their heavy backpacks with them.'

The other options are incorrect as they fail to accomplish the meaning of the sentence appropriately. Option A('theirs) exemplifies the inappropriate pronoun to replace the antecedent while option C i.e. 'they'are' signifies contraction merely. Thus, option B is the correct answer.