Answer: C
Step-by-step explanation:
First, we are going to distribute the negative sign in the last expression, which gives us (7x - 2) - (3x - 5) = 7x - 2 - 3x + 5 (negative times a negative is a positive), and combine like terms: 7x - 3x + 5 - 2 = 4x +3, or C.