They are different things
Passive voice can be detected when the subject is being acted upon rather than performing the action.
- In Option A, the Scientist (subject) researched (acted).... this is therefore written in active voice.
- In Option B, The Plants (subject) transpire (act)....this is therefore written in active voice.
- In Option C, The Vegetable crops (subjects) respond (act)....this is also written in active voice.
- In Option D, The Comprehensive report (subject) was filed (is acted upon)... this sentence, therefore, was written in passive voice.
It is clear from the above that the correct answer is Option D.
Learn more about Passive Voices in the link below:
brainly.com/question/24578851
Answer:
They intensified their efforts to increase sales
