Final answer:
According to the CFA Code and Standards, Jenna Mitchel, as the head of research at a large investment management company, has supervisory responsibilities over all her subordinates, regardless of whether they are governed by the CFA Code and Standards or not. She is still responsible for ensuring compliance across the entire organization, including both the Compliance and Research Units.
Step-by-step explanation:
According to the CFA Code and Standards, Jenna Mitchel, as the head of research at a large investment management company, has supervisory responsibilities over all her subordinates, regardless of whether they are governed by the CFA Code and Standards or not. Therefore, statement (i) is correct.
Since Mitchel is responsible for compliance, she needs to ensure that all her subordinates, including those in the Research Unit, adhere to the CFA Institute Standards of Professional Conduct. Therefore, statement (ii) is incorrect.
Regarding statement (iii), Mitchel's delegation of some supervisory responsibilities in the Research Unit does not mean that her responsibilities now only involve the Compliance Unit. She is still responsible for ensuring compliance across the entire organization, including both units.
In conclusion, based on the CFA Code and Standards, all of Jenna Mitchel's subordinates, regardless of which unit they belong to, are subject to the Code and Standards and she has supervisory responsibilities over all of them.