A pure sample of (R)-limonene has a specific rotation of +125.6. If a mixture of (R)-limonene and (S)-limonene has a specific rotation of +62.8, what are the percentages of the R and S enantiomers in this mixture?
A. 75% R, 25% S
B. 55% R, 45% S
C. 45% R, 55% S
D. 25% R, 75% S