answer: d) 120
why?
think about it, the easiest 4 consecutive natural numbers is 1, 2, 3, 4
and the only number out of all of them that can be divided is 120!
120/1=120
120/2=60
120/3=40
120/4=30
i know the explanation is kinda sketchy, but that's the best way i can explain it!
~hope it helps!~