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Two stars \( P \) and \( Q \) have slightly different surface temperatures \( T_{P} \) and \( T_{Q} \) respectively, with \( T_{P}T_{Q} \). Both stars are receding from the earth with speeds \( v_{P} \) and \( v_{Q} \) relative to the earth. The wavelength of light at which they radiate the maximum energy is found to be the same for both :
(A) \( v_{P}v_{Q} \)
(B) \( v_{P}v_{Q} \)
(C) \( v_{P}=v_{Q} \), and the size of \( Q \) the size of \( P \)
(D) Nothing can be said regarding \( v_{P} \) and \( v_{Q} \) from the given data
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