“A _________ investigation can sometimes yield new facts, but typically organized ones are more successful.”

The word that best fills the blank in the above sentence is

A rewording of something written or spoken is a ______________.

If ‘relftaga’ means carefree, ‘otaga’ means careful and ‘fertaga’ means careless, which of the following could mean ‘aftercare’ ?

Out of the following four sentences, select the most suitable sentence with respect to grammar and usage.