Two plane glass testing slides each of surface area A are stuck with each other by a small water drop squeezed between them as an extremely thin film of thickness d. If the surface tension of water be T and the angle of contact be zero, then the force required to pull apart the two glass plates will be

A

$$\frac{8TA}{d}$$

B

$$\frac{4TA}{d}$$

C

$$\frac{2TA}{d}$$

D

$$\frac{TA}{d}$$