Use the Given Zero to Find the Remaining Zeros of the Function

Multiple Choice

Use the given zero to find the remaining zeros of the function.
- $f ( x ) = x ^ { 4 } - 45 x ^ { 2 } - 196$ ; zero: $- 2 i$

A) $2 i , 7 i , - 7 i$
B) $2 \mathrm { i } , 7 , - 7$
C) $2 \mathrm { i } , 14 \mathrm { i } , - 14 \mathrm { i }$
D) $2 \mathrm { i } , 14 , - 14$