RBI Assistant Prelims 2016 Sitting 3 Paper

Leena placed four envelopes A, B, C and D above one another but not necessarily in the same order. She kept one of the items in each of the envelopes Tickets, Passport, Marksheets and Stationery but not necessarily in the same order. The envelope containing Passport is kept immediaely below A. No envelope is kept between A and C. The envelope containing Tickets is kept immediately above the envelope containing Marksheets. A does not contain Marksheets. What is the position of the envelope containing Stationery from the top of the stack ?