A group of students is writing a program that will convert their letter grades into a 4.0 scale. For their program, they want a letter grade to be entered to be converted into the program. Which programming construct should be used to accomplish the selection and conversion?(1 point)

Question

Responses

while loop
while loop

condition
condition

if-then-else
if-then-else

for loop

Answer 1

To accomplish the selection and conversion of letter grades into a 4.0 scale, the most appropriate programming construct to use is if-then-else. This construct allows for checking multiple conditions and performing different actions based on the letter grade entered.

Here’s a brief explanation of the options:

• while loop: This is used for repeating a block of code as long as a certain condition is true, and it's not suitable for selecting between different grades.

• condition: This term is a bit vague on its own, as it could refer to any conditional statement but doesn't specify a construct to use.

• if-then-else: This is ideal for checking different cases (such as different letter grades) and executing specific code based on the value.

• for loop: This is used for iterating over a range or collection of items, which is not needed for a simple conversion based on a single input.

So, the correct answer is if-then-else.