Exhibit 15-2 the Following Question(s) Pertain to the Sequence of Events

Exhibit 15-2 The following question(s) pertain to the sequence of events below:
Part A: A solution initially only containing 500.0 ml of 1.00 M Formic Acid.
Part B: 800.0 ml of 0.500 M NaOH is added to the solution from Part A.
Part C: An additional 250.0 ml of the 0.500 M NaOH is added to the resulting solution from Part B.
Refer to Exhibit 15-2, Part C. What is the new pH?

A) 3.05
B) 10.94
C) 12.20
D) 13.33