Final answer:
A M.O is a payment method similar to a check, while a signature is a handwritten representation of a person's name used for identification or endorsement.
Step-by-step explanation:
A M.O, or Money Order, is a payment method that functions similar to a check, where a specific amount of money is guaranteed by a third party.
A signature, on the other hand, is a handwritten representation of a person's name and is used as a form of identification or endorsement.
An example of a M.O is when someone sends money through the mail to pay a bill, while an example of a signature is when someone signs a contract to validate its authenticity.
A method of operation (M.O.) refers to a person's or entity's typical way of doing things, while a signature is a person's handwritten depiction of their name or a unique mark made to signify agreement, approval, or identity. For example, a detective might discuss a criminal's M.O. as breaking into homes through rear windows. In contrast, a signature example is the personalized scribble a person uses to sign a check or legal document.