If 0<a<b<c<d<e in the equation S = (a/b) + (c/d) + (1/e), then the greatest increase in S would result from adding 1 to value of which variable?

A a

B b

C c

D d

Correct Answer: Option A

Let, a=1, b=2, c=3,d=4,e=5

S= 1/2+3/4+1/5

a এর সাথে আরো 1 যোগ করলে (1+1)/2 =1

greatest increase in S would result from adding 1 to the value of A