A major accounting contribution to the managerial decision-making process in evaluating possible courses of action is to

A) assign responsibility for the decision.
B) provide relevant revenue and cost data about each course of action.
C) determine the amount of money that should be spent on a project.
D) decide which actions that management should consider.

The major accounting contribution to the managerial decision-making process is to provide relevant revenue and cost data about each possible course of action, which helps managers weigh the costs and benefits of each option and make informed decisions based on financial and other relevant information. Assigning responsibility, determining the amount of money to spend, and deciding which actions to consider are all important steps in the decision-making process, but they are not the main accounting contribution.