Where is it legal to put a break statement? What does the break do there?

a. A break is placed in a simple (unnested) loop, to terminate the loop.
b. A break is placed in an inner block of nested blocks, to transfer control beyond the end of block the break is within.
c. A break is placed in a loop in nested loops, to transfer control beyond the end of the innermost loop the break is within.
d. A break is placed in a switch statement, to terminate the switch by transferring control beyond the end of the switch.
e. A break is placed in a loop where it restarts the loop.

a) c) d) are correct