Perform the Addition or Subtraction and Write the Result in Standard

Multiple Choice

Perform the addition or subtraction and write the result in standard form.​ $33 + ( - 10 + 13 i ) + 20 i$ ​

A) ​ $23 + 33 i$
B) ​ $23 - 33 i$
C) ​ $- 23 - 33 i$
D) ​ $- 23 + 33 i$
E) ​ $23 + 35 i$