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 characteristic of Big Data is that:
Option A:one of its traditional sources is business processes.
Option B:it involves formats with diverse types of structures.
Option C:real-time communication of it is uncommon due to vast content.

Answer: B