The tension in the string revolving in a vertical circle with a mass 𝑚 at the end which is the lowest position

Question: The tension in the string revolving in a vertical circle with a mass 𝑚 at the end which is the lowest position

(A) $\dfrac{mv^{2}}{r}$

(B) $\dfrac{mv^{2}}{r}-mg$

(C) $\dfrac{mv^{2}}{r}+mg$

(D) mg