A project manager develops a project management plan and schedule based on an agreed-upon project lifecycle of 16 months. Later, due to changing business requirements, the project manager receives a request for completion within 9 months. How should the project manager respond to this proposed change in timeline? Select one.

Perform a feasibility study, and then assess the results.

Identify threats and preventive actions by conducting a risk assessment.

Note the concerns in the issue log to review at a later date.

Discuss the resource's concerns with the sponsor and modify the project charter.