A sentence has been given in Active/Passive voice. Out of the four alternatives suggested

A sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select one which best expresses the same sentence in passive/active Voice.

Kamini was invited to her institute to deliver a speech after her success in the NEET examination.

a)            They asked kamini to invite to her institute to deliver a speech after her success in the NEET examination.

b)            They invite kamini to her institute to deliver a speech after her success in the NEET examination.

c)            They invited kamini to her institute to deliver a speech after her success in the NEET examination.

d)            They are inviting kamini to her institute to deliver a speech after her success in the NEET examination.