In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Southern moles are six to seven inches long and weigh _ to four ounces.

A: three
****
Q: Frozen grafts can have a shelf life of up to _ years.

A: five
****
Q: Affected dogs die because of anemia and hepatic failure and death by _ years of age.

A:
five
****