ACT Practice Question: Trigonometric Expressions

 
Here is a practice question on simplifying trigonometric expressions.

For all $\theta$, $\quad \sin \theta + {(\cot \theta})(\cos{\theta})$ is equivalent to

1. $\quad \csc \theta$
2. $\quad \sec \theta$
3. $\quad \cot \theta$
4. $\quad \tan \theta$
5. $\quad \cos \theta$