Select the option that expresses the given sentence in passive voice.
What did you do to help the migrant labourers during the pandemic?

A

What is done by you to help the migrant labourers during the pandemic?

B

What was being done by you to help the migrant labourers during the pandemic?

C

What was done by you to help the migrant labourers during the pandemic?

D

What has been done by you to help the migrant labourers during the pandemic?