Option A: $\cosec\theta \cdot \sec\theta$
$\cot\theta + \tan\theta = \dfrac{\cos\theta}{\sin\theta} + \dfrac{\sin\theta}{\cos\theta} = \dfrac{\cos^2\theta + \sin^2\theta}{\sin\theta\cos\theta} = \dfrac{1}{\sin\theta\cos\theta} = \cosec\theta \cdot \sec\theta$
Examiners expect you to convert cot θ and tan θ into sin/cos form, add the fractions, then apply the identity sin²θ + cos²θ = 1. The result 1/(sinθ cosθ) directly equals cosec θ · sec θ. Always show the key steps even in MCQs if justification is asked.