The answer is 2-to-the-power-of-n, since for every input, the number of different combinations doubles. From your list I think answer A is meant to indicate 2ⁿ.
Your answer is a to your question
Answer:
BEGIN
SET count = 1
WHILE count <= 12 THEN
INPUT length
perimeter = length * length
PRINT perimeter
END WHILE
END
Explanation:
You can also set count to 0 and in while loop use count < 12 to loop just 12 times just as above
Answer: because computers are our main source of communicating and where we find a wide range of information to help us
Explanation: