Final answer:
The legal right to act as the attorney or agent of another person, including handling that person's financial matters, is called power of attorney.
Step-by-step explanation:
The correct answer is a) Power of attorney.
Power of attorney refers to the legal right to act as the attorney or agent of another person, including handling that person's financial matters. It allows someone to make decisions on behalf of another person, such as managing their finances, signing contracts, or making healthcare choices.
For example, a person may grant power of attorney to a trusted family member or friend to handle their affairs if they become incapacitated or unable to make decisions for themselves.