The sentence presents two contrasting reactions to the scientist’s research
The first blank should express a positive reception within academic circles, as the research has the potential to revolutionize the fieldBoth "lauded" (B) and "celebrated" (D) fit well here, but the correct answer is (B) "lauded," which means praised highly
The second blank refers to some individuals' skepticism about the research, describing it as "overly ambitious and untested" The word "questioned" (E) fits perfectly here as it means to express doubt or skepticism
Thus, the completed sentence reads
*The scientist’s groundbreaking research was* **lauded** *in academic circles for its potential to revolutionize the field, yet it was* **questioned** *by some as overly ambitious and untested*