Alex wants to fence in an area for a dog park. He has plotted three sides of the fenced area at the points E (3, 5), F (6, 5), and G (9, 1). He has 22 units of fencing. Where could Alex place point H so that he does not have to buy more fencing?

a. (0, 0)
b. (-1, 0)
c. (0, -3)
d. (0, 3)