Evaluate $$cosxsin$5$xdx$$cosxsin$5$xdx$.$

Select one:

a$.$

$$sin$6$x$6+$C$$sin$6$x$6+$C

b$.$

cosxsin$6$x$6+$Ccosxsin$6$x$6+$C

c$.$

sin$6$x$6+$Csin$6$x$6+$C

d$.$

cos$2$xsin$5$x$2+$C