magnitude of bending momen tof cantilever beam

Question

A cantilever beam OP is connected to another beam PQ with pin joint as shown in figure. A load
of 10 kN is applied at the mid-point of PQ. The magnitude of bending movement (in kN-m) at
fixed end O is

(a) 2.5        (b) 5        (c) 10        (d) 25