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.

A report on long-term stock returns focused exclusively on all currently publicly traded firms in an industry is most likely susceptible to:
Option A:look-ahead bias.
Option B:survivorship bias.
Option C:intergenerational data mining.

Answer: B