The Only Quantities of Good 1 That Tomoko Can Buy

The only quantities of good 1 that Tomoko can buy are 1 unit or 0 units. For all positive values of x₂, Tomoko's preferences are represented by the utility function (x₁ + 14) (x₂ + 16) . If her income is $20 and the price of good 2 is $1, then Tomoko's reservation price for good 1 is

A) $.88.
B) $8.50.
C) $2.40.
D) $4.80.
E) $1.04.