Select the FALSE statement concerning POWERS of ATTORNEY.

A$.$ An attorney$-$in$-$fact in a business power of attorney can be a nonlawyer.

B$.$ Health care powers of attorney have to be in writing.

c$.$ If a durable power of attorney was created when the principal still had capacity to manage his business affairs, the agent's authority to act is valid when the principal is incapacitated.

D$.$ Durable powers of attorney generally allow the agent to manage the assets of the estate after the principal dies.