Answer:
A. Interest rates rise and the cost of building the station rises.
Step-by-step explanation:
An increase in interest rate means that the amount of money that will be paid back on a loan borrowed for a given period of time will increase. A risen interest rate discourages borrowing, and spending, as people do not want to pay a lot of money on loans collected. If interest rate increases, the company best postpone the project to a later time when interest rate falls. If the cost of building the new station increases, it means more capital than normal is now needed to build this service station, which will discourage investing in the project at that time period. So an increase in interest rate and cost of building the station, makes it less likely that the company builds the station in this time period.