Question

Q #20 - Researchers claim the new
discovery is a major
in
the fight against malaria.
A. O breakthrough
B. O investigation
C. O progress
​

Answer 1

Answer:

breakthrough

Hope it will help

Answer 2

Answer.

• Researches claim that the new discovery is a major A. breakthrough in the fight against Malaria.

Explanation.

• The starting mentions of discovery of something in the fight against Malaria which expresses of success in it.

• That is why we use the like term for success which is breakthrough, a success in grand.

• Here investigation and progress are not appropriate because it is a claim of new discovery which is certain a success.