Problem Solving (PS) | Re: Set A consists of five positive numbers. Set B consists of the square

SD is directly proportional to Range.

So, in above scenario, Range of SetB is greater than SetA.

Now, There is only one condition in which Range of a set with positive numbers[SetA] is smaller than Range of their square roots[SetB] :
That is, if both a1 and a5 are less than 1.

Eg.
SetA: a1=0.04 and a5=0.16
Range= 0.12

SetB: a1=0.2 and a5=0.4
Range= 0.2

Therefore, Range of SetA is greater than Range of Set B.

Basis, only Must be True condition is Condition 2.

Hence, Ans E.

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