Select the correct answer.
The complex solutions of which equation have a real component of 4?
A$x^2+4 x+4=-25$
B$x^2-4 x+4=-25$
C$x^2+8 x+16=-21$
D$x^2-8 x+16=-21$
The complex solutions of which equation have a real component of 4?
A$x^2+4 x+4=-25$
B$x^2-4 x+4=-25$
C$x^2+8 x+16=-21$
D$x^2-8 x+16=-21$