Find the Indicated Coefficient or Term $( x - 2 y ) 13$

Multiple Choice

Find the indicated coefficient or term.
-The 8 th term in the expansion of $( x - 2 y ) 13$

A) $109,824 x ^ { 6 } y ^ { 8 }$

B) $- 219,648 x ^ { 6 } y ^ { 7 }$

C) $- 219,648 x ^ { 7 } y ^ { 6 }$

D) $109,824 x ^ { 7 } y ^ { 6 }$