Typically, Lawyers Bill Their Fees on the Basis of Which

Typically, lawyers bill their fees on the basis of which of the following?

A) A fixed fee, an hourly rate, or a contingency fee
B) A fixed fee, a pro rata distribution, or a contingency fee
C) A stipend, a pro rate distribution, or an hourly rate
D) A stipend, an hourly rate, or a contingency fee
E) A fixed fee, a stipend, or a pro rata distribution