Select all true statements about multithreaded programs and concurrency. It's efficient for a thread that is waiting on data from memory, a network connection, or even another thread to enter a waiting state to let other threads run. There is a time and memory cost associated with creating and destroying threads. Concurrency and parallelism are the same thing. The time it takes to complete an IO bound task is mainly due to the hard drive, keyboard, or other peripheral device the program is interacting with. Multithreaded applications are more efficient on IO-bound tasks, but only on multi-core computers. Whether or not two threads can run in parallel is a question of hardware, not software