The statement is true. A project manager may "also" be the project champion. But it is not mandatory. But there are possibilities that the project manager is also an expert the in project he is handling. Thus, the above statement is true. If the statement would have been - The project manager will be or needs to be the project champion, then it would be false statement.
According to the given question, the few restaurants student opting quick service management is the process of lack of varieties, opportunities and the glamour.
The Quick service is one of the disadvantage method using in the management as it contain the fast serving of the food and lack of the various types of variety in the food menu.
We are not able to manage all the stuff in order to satisfying the customer requirement and also lacks the opportunities for the self expression. Therefore, Quick service is the correct answer.