Use Basic Identities to Simplify the Expression $\sin \theta \cos \theta \sec \theta \csc \theta$

Multiple Choice

Use basic identities to simplify the expression.
- $\sin \theta \cos \theta \sec \theta \csc \theta$

A) $\tan ^ { 2 } \theta$
B) $\sec ^ { 2 } \theta$
C) 1
D) $\csc ^ { 2 } \theta$