Directions: In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.

They use online resources for teaching the students.

Passive voice is preferred when Active form would involve the use of an indefinite or vague pronoun or noun as subject, i.e. when we do not know the agent or the agent is obvious. In such cases, the agent with ‘by’ is usually avoided. Thus, this sentence in simple present tense will have the verb ‘are used'. The correct sentence in this context is, ‘Online resources are used for teaching the students'.