A project has a very tight delivery schedule. The project is approaching the delivery date, and the project sponsor often sends the project manager alerts to avoid any schedule slippage. The project team has performed at an acceptable level until now, but the project manager wants to ensure the team's performance level is maintained until the end. What action should the project manager take to motivate the project team's performance? Hire a few temporary team members to help with the additional work. Send a formal notice to team members instructing them to maintain performance. Award certificates of appreciation to encourage the team. Inform the team about the delivery pressure from the project sponsor