6. An investor has two investment alternatives. If he chooses Alternative 1, he will have to make an immediate outlay of $13000 and will receive $52 000 after eight years. If he chooses Alternative 2, he will have to make an immediate outlay of $14000 and will receive $1000 every three months for the next nine years. If interest is 12% compounded quarterly, a) what is the net present value for each alternative? b) which alternative should the investor choose considering the net present value criterion