Q. In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at $$\omega $$ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO. The acceleration of the piston P with respect to the crank-pin C is given by

• (A) $${\omega ^2}$$ × NO
• (B) $${\omega ^2}$$ × CO
• (C) $${\omega ^2}$$ × CN
• (D) $${\omega ^2}$$ × QN