What should the project manager do to overcome this problem and put the project back on track?

This option simply restates the problem without proposing any actionable solution. A project manager must address the issue rather than merely acknowledging it to move forward and get the project back on track.

Accepting penalties and continuing as planned is a passive approach that may exacerbate the problem rather than resolve it. This choice ignores the need for proactive measures to address the supplier failure and could lead to further complications and costs.

While allocating resources is important, simply following the risk response plan without consulting legal and expert opinions may overlook critical factors that could affect the project's success. Consulting with SMEs can provide tailored strategies to better navigate the current challenges.

Extending delivery times and utilizing management reserves can be part of a larger strategy, but it does not directly address the root cause of the supplier's failure. This option may only serve as a temporary fix without a comprehensive plan to prevent future issues.