All of the experimental designs discussed in the book can be implemented within the context of the virtual world but not the real social world

Health maintenance organizations cover all services for a fixed fee but control is exercised over which doctors and health facilities a member may use

Indicate whether this statement is true or false.

Refer to the diagram below, where the numbers next to the arrows refer to the number of days required for completion of the corresponding activity. What is the critical path?

A) A-B-D-F B) A-C-E-F C) A-B-D-E-F D) A-C-B-D-F E) A-C-B-D-E-F