________ tail board will be used is EMU train. A. Turnover B. Turn Flow C. Turn Over & Turn Flow D. None of these

The correct answer is: None of these.

The tailboard is a platform at the end of a train that is used for passengers to board and disembark. It is typically located at the end of the last car in the train. The tailboard is usually made of metal or plastic and has steps that passengers can use to climb on and off the train.

The turnover is the number of times a product is sold and replaced in a given period of time. The turn flow is the rate at which a product is sold and replaced in a given period of time.

Neither turnover nor turn flow are related to the tailboard of a train.