Select the most appropriate option to fill in blank number 3.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. likely to.
Context: The impact on human health is growing and expected to grow further.
Analysis of the given options:
- rarely to – incorrect phrase
- likely to – probable; suits context
- barely to – incorrect construction
- hardly to – grammatically wrong
Correct word: likely to
Reason: 'Is likely to' is the proper phrase to show a probable future action.
Hence, the chosen option is correct.