9.Jorge Lopez,CFA,is responsible for his bank's proxy voting on behalf of the bank's asset management clients.Lopez recently performed a cost-benefit analysis,showing that voting all proxies might not benefit the bank's clients.Based on this analysis,Lopez changes the proxy voting policies and procedures without informing anyone else of the change.Lopez now votes client proxies on the side of management on all issues with the exception of major mergers where a significant impact on the stock price is expected.Lopez least likely violated the CFA Institute Standards of Professional Conduct regarding:
A:

A.cost-benefit analysis.
B:

B.voting with management.
C:

C.proxy voting policy disclosures.