Select all true statements about multithreaded programs and concurrency.

Multithreaded applications are more efficient on IO$-$bound tasks, but only on multi$-$core computers.

There is a time and memory cost associated with creating and destroying threads.

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.

Whether or not two threads can run in parallel is a question of hardware, not software.

Concurrency and parallelism are the same thing.

The time it takes to complete an $10$ bound task is mainly due to the hard drive, keyboard, or other peripheral device the program is interacting with.