Astudent solved this problem and said the answer is 5 pounds.

todd has two packages of hamburger. one package weighs pound and the other weighs pound. what is the total weight of both packages of hamburger combined?

is the student's answer reasonable?

a.
yes, the answer is reasonable.

b.
no, the answer is not reasonable. it should be about 3 lb.

c.
no, the answer is not reasonable. it should be about 2 lb.

d.
no, the answer is not reasonable. it should be about 1 lb.