The correct answer is: B. do while
A do-while loop is a control flow statement that allows code to be executed repeatedly as long as a condition is true. The syntax for a do-while loop is as follows:
do
{
// code to be executed repeatedly
} while (condition);
The do-while loop is similar to a while loop, but the condition is checked at the end of the loop 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.
Here is an example of a do-while loop:
int i = 0;
do
{
Console.WriteLine(i);
i++;
} while (i < 10);
This loop will print the numbers from 0 to 9.
The other options are incorrect for the following reasons:
A for loop is a control flow statement that allows code to be executed repeatedly a specified number of times. The syntax for a for loop is as follows:
for (initialization; condition; increment)
{
// code to be executed repeatedly
}An if statement is a control flow statement that allows code to be executed if a condition is true. The syntax for an if statement is as follows:
if (condition)
{
// code to be executed if condition is true
}A nested loop is a loop that is contained within another loop. For example, the following code contains a nested for loop:
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 5; j++)
{
Console.WriteLine(i + " " + j);
}
}
This code will print the numbers from 0 to 49.