If you have 36 graham cracker squares, 20 marshmallows, and 51 squares of chocolate. How many complete smores can be made? What is the limiting reactant?

a
19 smores can be made. There is no limiting reactant.
b
18 complete smores can be made. The graham cracker squares are the limiting reactant.
c
17 complete smores can be made. The chocolate squares are the limiting reactant.
d
20 complete smores can be made. The marshmallows are the lmiting reactant.