Problem: Street Parking is scarce.
Solution: Add parking meters (with time limits) to ensure parking spaces are generally available.
Kayla's objection: Plan will backfire as people don’t like to pay fee. They will drive to other neighborhoods to shop at malls with free parking.

We need to counter Kayla's objection. Correct answer must establish that plan will not backfire i.e. it must indicate that people will continue to shop at the neighborhood despite being charged parking fee.

B. The city could post signs with street parking time limits to ensure that parking spaces become available without forcing shoppers to pay at meters. – This option suggests a way to avoid paying parking fee by adhering to timelines. Being aware of time limits is not the same as not having to pay. There is no reason to believe that people would not be repelled merely by the time restrictions. They might still prefer to go to other malls having unrestricted free parking.

C. Currently, most shoppers in the neighborhood drive only occasionally to shop at malls in other neighborhoods. – This option just tells us the current scenario. Does not specify why people would continue to shop at the neighborhood despite being charged parking fee.

D. The neighborhood already contains a parking lot where shoppers must pay to park. – Not sufficient to conclude that people do not mind paying parking fee. May be the current parking lot is not being used at all.

E. The nearby malls with free parking have no parking time limits to help ensure that parking spaces in their lots become available. – This option in turn points out that other malls might not have parking space available. It does not rule out the possibility that people will go to other malls whenever they can find parking space at such malls.

A. Most shoppers dislike hunting for scarce street parking spaces much more than they dislike paying for metered parking spaces. – This answer correctly indicates that scarcity of parking space is a bigger problem than parking fee. If people are not going to other malls in current scenario, they would obviously not go to other malls once the scarcity problem is solved – even if they have to pay fee.