Question

Which of the following statements is always true for a loop structure?

Loop iterations only end when a break statement is reached.
The loop must include a control variable.
The loop will repeatedly execute a set of instructions.
The loop will repeatedly execute a set of instructions until a condition evaluates to false.

Answer 1

Most of the answer choices *can* be true of loops, but only one of them is *always* true of loops

Loops *can* end when a break statement is reached, but that is certainly not the only way they end
Some loops, like for-loops do contain control variables, but while-loops do not require them, so this statement is not always true
Loops do always repeatedly execute a set of instructions--that is kind of the definition of a loop!
The last statement is true of while-loops, but for-loops do not depend on a condition evaluating to "true" in order to continue

Answer 2

ITERATION: Loops to repeat a block of code

Applies to loops
Will repeat execution of a set of instructions until a certain condition is reached
Must include a starting condition and an execution statement that updates the control variable

Answer 3

Im thinking C.) The loop will repeatedly execute a set of instructions.

Answer 4

Because this will always be true for a loop structure

Answer 5

I think you're right. That is indeed always true of loops. Repeatedly executing a set of instructions is pretty much what loops are for!

Answer 6

Yess indeed