The project management team is about to start developing responses to identified risks. After reading the risk management plan, one team member is worried because she does not understand the concept of a fallback plan. You should explain to the team member that a fallback plan is:

A. A provision of time or costs for unforeseeable events B. An alternative risk response, or plan B, activated if the main risk response is ineffective C. A planned course of action implemented if the specified risk events occur D. An action to reduce the probability or impact of the risk by revising the project management plan