A body weighing 13kg is suspended by two strings 5m and 12m long, their other ends being fastened to the extremities of a rod 13m long. If the rod be so held that the body hangs immediately below the middle point, Then tensions in the strings are
(a) 5kg and 12kg
(b) 5kg and 13kg
(c) 12kg and 13kg
(d) 5kg and 5kg.
