Use a Calculator to Solve the Equation

Multiple Choice

Use a calculator to solve the equation. Round to the nearest hundredth, if necessary.
-(m + 3.84) ² = 20.25

A) { 2.54, -6.46}
B) { 0.66, -8.34}
C) { 4.05, -4.05}
D) { 0.66}