Marja is a member of a team working to develop a new product idea. Even though they have been working on the project for two weeks, the team missed its first deadline. Other members of the team blame Marja because she had to stay home with her sick child, missing one of the meetings. The team blaming Marja for the failure is an example of ______. a. escalating commitment b. polythink c. groupthink d. team defense mechanism