Use the Square Root Property to Solve the Equation $2 x ^ { 2 } + 14 = 0$

Multiple Choice

Use the square root property to solve the equation.
$2 x ^ { 2 } + 14 = 0$

A) $\{ - \mathrm { i } \sqrt { 7 } , \mathrm { i } \sqrt { 7 } \}$
B) $\{ - 7 i , 7 i \}$
C) $\{ - \sqrt { 7 } , \sqrt { 7 } \}$
D) $\{ - 7,7 \}$