The price of gasoline at 4 different gas stations is shown in the table below. Which gas station charges the least amount per gallon of gasoline?

Gas station K's amount of gas is 15 for $36.

Gas station L's amount of gas is 10 for $23.50.

Gas station M's amount of gas is 8 for $20.

Gas station N's amount of gas is 20 for $51.

AGas station K

BGas station L

CGas station M

DGas station N