Staying Active, continued

Again, select every answer choice that uses the active voice. When you've selected all of your choices, click Continue.

	the study was written by an expert in the fields of psychometrics and cognitive biology
	written by an expert in the fields of psychometrics and cognitive biology, the study
	the study, as it was written by an expert in the fields of psychometrics and cognitive biology, was
	an expert in the fields of psychometrics and cognitive biology wrote the study
	the study in the fields of psychometrics and cognitive biology was written

(1) This choice uses the passive construction "was written."
(2) This choice is active.
(3) This choice uses the passive construction "was written."
(4) This choice is active.
(5) This choice uses the passive construction "was written."

Choices (1), (3), and (5) all use the passive construction "was written." Depending on the context of the question sentence, either of Choices (2) and (4) would be a better answer.