physics help!

Two springs P and Q both obey Hooke’s law. They have spring constants 2k and k respectively.The springs are stretched, separately, by a force that is gradually increased from zero up to a certain maximum value, the same for each spring. The work done in stretching spring P is WP,and the work done in stretching spring Q is WQ.How is WP related to WQ?

A: Wp=0.25Wq
B: Wp=0.5Wq
C: Wp=2Wq
D: Wp=4Wq

I'm not sure of the answer and I need help.
Couldn't find the marking scheme :(
Its from nov 2002 paper.

Thanks!

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asked by Taylor
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    posted by Ang

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