Answer: A, B, D

According to Article 4 of the "Measures for the Administration of Futures Practitioners", the term "futures practitioners" as mentioned in these Measures refers to: (1) Futures companies' Managers and professionals: (2) Managers and professionals engaged in futures settlement business among non-futures company clearing members of futures exchanges: (3) Managers and professionals engaged in futures investment consulting business in futures investment consulting institutions; (4) Managers and professionals engaged in futures business in institutions that provide intermediary introduction services to futures companies; (5) Other personnel specified by the China Securities Regulatory Commission.