The correct answer is: C. While loop statement
A while loop is a control flow statement that allows code to be executed repeatedly based on a condition. The condition is evaluated before each iteration of the loop, and if it is true, the code inside the loop is executed. The loop continues to iterate until the condition becomes false.
A do-while loop is similar to a while loop, but the condition is evaluated at the end of each iteration instead of at the beginning. This means that the code inside the loop will always be executed at least once, even if the condition is false.
A for loop is a control flow statement that allows code to be executed repeatedly based on a counter. The counter is initialized to a value, and then it is incremented each time the loop iterates. The loop continues to iterate until the counter reaches a specified value.
An if statement is a control flow statement that allows code to be executed based on a condition. The condition is evaluated, and if it is true, the code inside the if statement is executed. If the condition is false, the code inside the if statement is skipped.
In conclusion, the while loop statement is used to code both pretest and posttest loops.