Which revision best reduces the wordiness in this sentence without changing its overall meaning?During recent research, genetic researchers have isolated the gene that determines the natural times a person sleeps and wakes.
A.During research, genetic researchers have isolated the gene that determines the natural times a person sleeps and wakes.
B.Genetic researchers recently isolated the gene that determines a person’s natural sleep cycle.
C.During recent research, genetic scientists who research have isolated the gene that determines the natural times a person sleeps and wakes. D.During recent research, genetic researchers have isolated the gene that determines times a person sleeps and wakes.
