What are the principal events that cause a process to be created a. CPU interrupt b. Memory virtualization c. Program is run d. Program is crashes The main reason for having threads is a. For many applications to have multiple activities going on at the same time. b. Process crashed and thread was spawned c. Process context switch needs threads d. Processes must have multiple threads What are the principal events that cause a process to be created a. CPU interrupt b. Memory virtualization c. Program is run d. Program is crashes The main reason for having threads is a. For many applications to have multiple activities going on at the same time. b. Process crashed and thread was spawned c. Process context switch needs threads d. Processes must have multiple threads