Answer: A
Explanation: Using a financial calculator to solve the problem :
For project A with a discount rate of 11.7%
Outlay = 80,000
CF for year 1 = 34000
CF for year 2 = 34000
CF for year 3 = 34000
I = 11.7 %
NPV = 2085
For project A with a discount rate of 13.5%
Outlay = 80,000
CF for year 1 = 34000
CF for year 2 = 34000
CF for year 3 = 34000
I = 13.5%
NPV = -397.5
For project B with a discount rate of 11.7%
Outlay = 80,000
CF for year 1 = 0
CF for year 2 = 0
CF for year 3 = 114,000
NPV = 1798
For project B with a discount rate of 13.5%
Outlay = 80,000
CF for year 1 = 0
CF for year 2 = 0
CF for year 3 = 114,000
NPV = -2,032
from the above calculations, project A has a better NPV when discount rate is 11.7% and 13.5%