Find the 5th Term in the Binomial Expansion $$( a + \sqrt { 6 } d ) ^ { 9 }$$

Multiple Choice

Find the 5th term in the binomial expansion. $$( a + \sqrt { 6 } d ) ^ { 9 }$$

A) $\quad 504 a ^ { 5 } d ^ { 4 }$
B) $\quad 6,340 a ^ { 6 } d ^ { 3 }$
C) $\quad 4,536 a ^ { 5 } d ^ { 4 }$
D) $4,536 a ^ { 4 } d ^ { 5 }$
E) $\quad 6,340 a ^ { 5 } d ^ { 4 }$