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

[EX Q]: Pharmacists dispense nearly _ billion prescriptions a year.
[EX A]: three

[EX Q]: Cancer can start in any of the _ sections or where the colon ends in the rectum.
[EX A]: four

[EX Q]: Recurrent miscarriage is defined as _ clinically confirmed early pregnancy losses.
[EX A]:
three