Fill in the blank with a suitable preposition with the help of the hint in the brackets.
Rekha sent the application _______ mail. (means/medium)
The preposition ‘through’ is used to denote the means or manner of doing something. In the given sentence, Rekha uses ‘mail’ as a medium to send her application, therefore ‘through’ is an apt answer. ‘Through’ here denotes that the application was sent from one end to the other by Rekha. Therefore option C is correct. On the other hand, the prepositions ‘with’ and ‘for’ are unsuitable here. ‘With’ is used to denote company while ‘for’ denotes why something is done or for whom. Rekha is not sending her application along ‘with’ the mail hence option A is incorrect. Similarly, the mail is a means and not the reason for sending the application hence option B is incorrect. The preposition ‘at’ is used to refer to a place which is once again unsuitable, as the ‘mail’ is not a place that Rekha can send the application from. Thus option D is incorrect.