If $$ sec ={13 over 12}$$, and is acute, then what is the value of $$ sqrt { cot +tan } $$ is......

If $$ sec ={13 over 12}$$, and is acute, then what is the value o

1.	If $$ sec ={13 over 12}$$, and is acute, then what is the value of $$ sqrt { cot +tan } $$ is......
A.	$$ {4 over 13}$$
B.	$$ {12 over 2 sqrt{13}}$$
C.	$$ {13 over 2 sqrt{15}}$$
D.	$$ {2 over 13}$$
Answer» C. $$ {13 over 2 sqrt{15}}$$