What Is the Effect of Adding NaOH(aq)to an Aqueous Solution

Multiple Choice

What is the effect of adding NaOH(aq) to an aqueous solution of ammonia?
1) The pH of the solution will increase.
2) The concentration of NH₄⁺(aq) will decrease.
3) The concentration of NH₃(aq) will increase.

A) 1 only
B) 2 only
C) 3 only
D) 2 and 3
E) 1,2,and 3