Beads `A` and `B` each of mass `m` , are connected by a light inextensible cord. They are constrained (restricted) to move on a frictionless ring in a vertical plane as shown. The beads are released from rest at the position shown. The tension in the cord just after the release is.

Options

A. `mgsqrt2`
B. `(mg)/sqrt2`
C. `(mg)/(2)`
D. `(mg)/4`