Two wires P and Q are produced from the same material. Wire P starts with a diameter that is twice that of wire Q and a length that is twice that of wire Q. The same force is applied to each wire, so both wires extend elastically. What is the ratio of the extension of P to the extension of Q?
- A$\frac{1}{2}$
- B$1$
- C$2$
- D$4$