An investor is promised the following set of annual cash flows if she invests today: YEAR 1 2 3 4 Cash flow $1,000 $1,100 $1,400 $2,200 If the investor has a 12% APR, how much can she pay today for this set of cash flows? a $4,944 b $4,455 c $5.101 d $4,164 e $3,785