Question

In the following questions, a sentence is given with a blank in it. It is then followed by five alternatives among which, one of the words fits correctly in the given blank so as to make the sentence meaningful. Find out the most suitable word and mark it as your answer. If researchers fail to gather sufficient empirical evidence from clinical trials, the medical board will likely view the new treatment protocol as ________.

Q: Answer-In the following questions, a sentence is given with a blank in it. It is then followed by five alte...

The conditional structure If researchers fail... indicates a negative outcome. Without enough evidence, a treatment remains unverified not proven true or valid. Conclusive , mandatory, authentic, and indisputable all imply that the treatment is proven, required, or solid, which directly contradicts the lack of evidence.