虽然不知道NPV profile是什么意思，但是我猜是C,因为只有IRR和WACC会影响到NPV

NPV profile is the value of NPV as the function of the discount rate. In other words, a function that shows NPVs for different discount rates on Cartesian plane. When it crosses the x-axis, the discount rate used for NPV calculations is IRR.
If two projects have the same IRR their charts go through the same point on the Cartsian plane so they touch each other.
I would say different  lives and sizes and the same IRR.

A: CF0	CF1	CF2
-1500	1000	3000
B: CF0	CF1
-20	35.7

A: X	Y
0%	2500
79%	0
1	-250.00 zł
B: X	Y
79%	0
0	15.7
1	-2.15 zł