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 categories completely represents an ethical principle of CFA Institute as outlined in the Standards of Practice Handbook?
Option A:Individual professionalism
Option B:Responsibilities to clients and employers
Option C:Ethics involved in investment analysis and recommendations

Answer: A