Your project has a tight deadline, and planning needs to start immediately; otherwise, there may be risks of delays. The sponsor has not signed the project charter and will not be available for another two weeks. What should you do$?$This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the option. option A Explain the urgency of the situation to the sponsor and escalate to senior management for resolution. option B Explain the urgency of the situation to the sponsor but do not start work until you have a signed project charter. option C Explain the urgency of the situation to the sponsor but start planning the project. You can have the sponsor sign the project charter when they are available. option D Explain the urgency of the situation to the sponsor and request senior management assign another sponsor.