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

[EX Q]: Elk are more than _ times the size of deer.
[EX A]: three

[EX Q]: Gravity is the weakest of all _ forces but unlike the others it has an unlimited range.
[EX A]: four

[EX Q]: Rhinoviruses are most infectious in the first _ days of cold symptoms.
[EX A]:
three