All of the Following Individuals Are Allowed a "For AGI

All of the following individuals are allowed a "for AGI" deduction except:

A) Cora owns her own CPA firm and travels from Lafayette,LA,to Washington,DC,to attend a tax conference.
B) Jennifer,who lives in Houston,is the owner or several apartment buildings in Salt Lake City and travels there to inspect and manage her investments.
C) Alan is self-employed and is away from home overnight on job-related business.
D) Alison is an employee who is required to travel to company facilities throughout the United States in the conduct of her management responsibilities.She is not reimbursed by her employer.