Astudent solved this problem and said the answer was 3 feet.

gina had two pieces of ribbon. one was foot long and the other was foot long. what was the total length of both pieces of ribbon combined?

is the student's answer reasonable?

a.
yes, the answer is reasonable.

b.
no, the answer is not reasonable. it should be about 1 foot.

c.
no, the answer is not reasonable. it should be about 4 feet.

d.
no, the answer is not reasonable. it should be about 6 feet.