A company which markets micro-computers has just introduced a new line in which is expected to sell for Rs. 10,000/- per system. The company offers the following payment plans for the potential customers. Option 1: Pay 4 Equal End-Of-Year Installments of Rs. 3,155 each. Option 2: Pay Rs. 14,641, at the end of 4th year Option 3: Pay Rs. 1,000, at the end of each year for 3 years & 11,000, at the end of 4th Which is the best option for a customer; and to the company; if interest rate is 12%? year.