Which one of the following statements regarding ‘Exit Poll’ is correct

(a)

‘Exit Poll’ is a term used to denote a post-election survey of voters regarding the candidate in whose favour they had exercised their franchise

(b)

‘Exit Poll’ and ‘Opinion Poll’ are one and the same

(c)

‘Exit Poll’ is a device through which results of voting can be most exactly predicted

(d)

‘Exit Poll’ is an administrative device made recently by the Chief Election Commissioner to prevent impersonation