A) PayUmoney Explanation: It can allow even the smallest of merchants to start accepting card based payments. It can accept all credit/debit cards. The POS terminal is easy to set up, can be operated using a pre- or post-paid SIM, and does away with the use of paper receipts—making it cost & battery effective, and, of course, very environment friendly. With a simple and hassle-free documentation policy, a merchant can start using a PayUmoney POS terminal within 48 hours of signing up for the service.