Question

A statement has been given with three words in bold. There are three answer choices given below, one or more of which may act as replacement to the original set of words. You are required to find the correct combination of the answer choices. In case the original set is correct, select ‘No improvement’. The study  revealed that certain tree strain  play a critical role in maintaining soil health, acting as natural barriers against erosion and sustaining the ecosystem’s balance.
I. report, plants, stability
II. research, variants, integrity
III. analysis, varieties, harmony

A Only I
B Only I & II
C Only II & III
D Only I & III
E No improvement
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