A flexible chain of weight $W$ hangs between two fixed points $A$ and $B$ which are at the same horizontal level. The inclination of the chain with the horizontal at both the points of support is $\theta$. What is the tension of the chain at the mid point?
- A$\frac{W}{2} \cdot \operatorname{cosec} \theta$
- B$\frac{W}{2} \cdot \tan \theta$
- C$0$
- D$\frac{W}{2} \cdot \cot \theta$
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- [JEE MAIN 2022]