Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Which of the following index weighting methods requires an adjustment to the divisor after a stock split?
Option A:Price weighting.
Option B:Fundamental weighting.
Option C:Market-capitalization weighting.

Answer: A