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.

Smith is a financial analyst with XYZ Brokerage Firm. She is preparing a purchase recommendation on JNI Corporation. Which of the following situations is most likely to represent a conflict of interest for Smith that would have to be disclosed?
Option A:Smith frequently purchases items produced by JNI.
Option B:XYZ holds for its own account a substantial common stock position in JNI.
Option C:Smith’s brother-in-law is a supplier to JNI.

Answer: B