Answer:
It's time for the past members of council to speak up and raise awareness of the city's needs.
Step-by-step explanation:
The original sentence has two problems: it has "its" where it should have "it's", and it gives the plural "cities" instead of the possessive "city's".
Option A has city as a plural. However, this leaves the word 'needs' without any connection to the rest of the sentence.
Option C has "its", showing possession. However, the time is not being owned by anyone or anything. Instead, the sentence should begin with "it's".
Option D is wrong because the original sentence has two major grammatical errors.
This leaves Option B, which has both the correct form of "it's" and city in the possessive rather than the plural.