Six girls are sitting in a row facing north. Garima is between Reena and Amita, Amita is on the immediate left of Pooja and Arpita is to the left of Rekha. Who is at the extreme left end?

Garima is between Reena and Amita, Amita is on the immediate left of Pooja. 

=> Garima is sitting to the immediate right of Reena, and Amita is second to the right of Reena.

Also, Arpita is to the left of Rekha.

=> Arpita and Rekha can be either to the left of Reena or to the right of Pooja.

Thus, two arrangements are possible, Arrangement 1 :

Arrangement 2 :

Thus, we cannot determine the person sitting at extreme left end.

=> Ans - (D)