Answer:
The answer is c (the one outlined in blue)
Explanation:
1. Angelo is wrong. Just start with the 1st one. 1+1.25 DOES NOT EQUAL 1.25
2. Try all the other ones, they don't work.
3. 1*1.25=1.25 (it works!) 2*1.25=2.50 (it works!) 3*1.25=3.75 (it works!)