$(4$secxtanx$)=(4$secxtanx$)=$

A$\mathrm{.}4($sec$$xtan$2$x$+$sec$3$x$)4($sec$$xtan$2$x$+$sec$3$x$)$

B$\mathrm{.}4($sec$2$xtanx$+$sec$3$x$)4($sec$2$xtanx$+$sec$3$x$)$

C$\mathrm{.}4($sec$2$xtanx$$sec$3$x$)4($sec$2$xtanx$$sec$3$x$)$

D$\mathrm{.}4$cot$2$xtanx$+4$sec$2$xtanx$4$cot$2$xtanx$+4$sec$2$xtanx

E$\mathrm{.}4$cot$2$xtanx$+4$sec$2$x$4$cot$2$xtanx$+4$sec$2$x