Answer:
A: [tex]csc(\theta)[/tex]
Step-by-step explanation:
Let's rewrite the expression in terms of sine and cosine, then simplify what can be simplified.:
[tex]sin(\theta) \cdot \frac{cos^2(\theta)}{sin^2(\theta)}\cdot \frac 1{cos^2(\theta)} =\\\frac1{sin(\theta)} = csc(\theta)[/tex]
