Write the Following as an Algebraic Expression in U, U $\sin \left( \operatorname { arcsec } \frac { \sqrt { \mathrm { u } ^ { 2 } + 4 } } { \mathrm { u } } \right)$

Multiple Choice

Write the following as an algebraic expression in u, u > 0.
- $\sin \left( \operatorname { arcsec } \frac { \sqrt { \mathrm { u } ^ { 2 } + 4 } } { \mathrm { u } } \right)$

A) $u \sqrt { 2 }$
B) $\frac { 2 \sqrt { u ^ { 2 } + 4 } } { u ^ { 2 } + 4 }$
C) $\frac { \sqrt { u ^ { 2 } + 2 } } { u ^ { 2 } + 2 }$
D) $\frac { u \sqrt { u ^ { 2 } + 2 } } { u ^ { 2 } + 2 }$