Mich. Comp. Laws § 556.307

Sec. 207. Unless the power of attorney provides otherwise, language in a power granting general authority with respect to commodities and options authorizes the agent to do the following: (a) Buy, sell, exchange, assign, settle, and exercise commodity futures contracts and call or put options on stocks or stock indexes traded on a regulated option exchange. (b) Establish, continue, modify, and terminate option accounts.