From different articles I read; majority of the people jumped overboard.
It is c because it will have a more positive connotation.
Answer:
The effect of Audrey's parents suing the city to integrate public parks was C. The city closed all of its parks.
Explanation:
The sentence directly after where it states that Audrey's parents sued the city states that the city closed all of its parks. Therefore, the cause is Audrey's parents suing the city, and the effect is the city closed all of its parks.
It clarifies the first part should be you answer here. i say this because one needs to clarify what is trying to be said.