The correct answer is B. Develop a contingency plan to cover additional logistics expenses.

This question describes a secondary risk , meaning a new risk created by the implementation of a prior risk response. The original response to supply chain disruption may have been appropriate, but it introduced an additional uncertainty: increased logistics costs. Once a secondary risk is identified, the risk manager should treat it as a normal project risk by analyzing it and determining an appropriate response. In this case, the most suitable response among the options is to develop a contingency plan for the potential added cost exposure.

A contingency plan is appropriate because the project may now face additional expenses that are uncertain in timing or magnitude. Planning for those costs provides a structured and proactive method of managing the new exposure without assuming it must automatically be accepted.

Why the other options are incorrect:

A. Accept the increased costs as part of the project ' s risk threshold. Acceptance may be appropriate in some situations, but the scenario does not indicate that the increased costs are within approved thresholds or that active planning is unnecessary. Immediate acceptance is weaker than preparing a specific response.

C. Switch suppliers to potentially reduce logistics expenses. This may create further disruption or additional risks and is not necessarily the most appropriate first response. The question asks how to address the newly identified risk, and contingency planning is the stronger risk-management action.

D. Incorporate a cost-sharing arrangement with the suppliers. This is a possible contractual tactic, but it is narrower and assumes supplier agreement. It may be part of a response strategy, but it is not the best general answer compared with a formal contingency plan.

Best-practice reasoning:

Secondary risks should be documented, analyzed, assigned, and responded to. When the new risk affects project cost, one practical response is to establish a contingency approach to manage the financial uncertainty if the risk materializes.

Reference-aligned basis:

This answer is consistent with standard risk management guidance that emphasizes:

risk responses can generate secondary risks,

secondary risks should be assessed and managed like any other identified risk,

contingency planning is a recognized way to address uncertain future cost impacts.