Calculate the PH of the Solution Resulting from the Addition

Calculate the pH of the solution resulting from the addition of 25.0 mL of 0.20 M HCl to 50.0 mL of 0.10 M aniline (C₆H₅NH₂) . K_b (C₆H₅NH₂) = 3.8 x 10^-10

A) 9.42
B) 9.12
C) 7.00
D) 2.30
E) 2.88