Which of the following will decrease the present value of the mixed cash flows for years 1 through 6 of $800,$3,200,$7,000,$4,500,$4,500, and $1,800, respectively, given an 8% discount rate? Switch cash flows for years 1 and 6 so that year 1 is $1,800 and year 6 is $800. Switch cash flows for years 2 and 6 so that year 2 is $1,800 and year 6 is $3,200. Switch cash flows for years 2 and 4 so that year 2 is $4,500 and year 4 is $3.200. Decrease the discount rate by 3%