Find the Cross Product $\mathbf { a } \times \mathbf { b }$

Multiple Choice

Find the cross product $\mathbf { a } \times \mathbf { b }$ . $\mathbf { a } = \langle 7,5,1 \rangle , \mathbf { b } = ( - 5,2 , - 2 )$

A) $( - 8 , - 12 , - 19 \}$
B) $\{ - 12,39,9 \}$
C) $\{ - 12,9,39 \}$
D) $\{ 39 , - 12,9 \}$
E) $( - 7 , - 23,25 )$