Statement:
Medicine 'x' is a drug which is causes ripples in the medical field.
Assumptions:
I. No other drug is causing ripples in the medical field.
II. Medicine 'x' is a great drug.
Answer: D
The passage does not state that only the medicine 'x' caused ripples in the medical field. Hence, (I) cannot be a valid assumption. We cannot say that medicine 'x' is a great drug just because it caused ripples in the medical field. Hence, (III) also is not valid.