Acetylene Gas, HCCH(g), Can Be Generated in the Laboratory by Adding

Multiple Choice

Acetylene gas, HCCH(g) , can be generated in the laboratory by adding calcium carbide to excess water, as shown in the following reaction
CaC₂(s) + H₂O(l) $\rarr$ HCCH(g) + CaO(s)
How many grams of CaC₂ would be required to generate 0.20 moles of HCCH(g)

A) 11 g of CaC₂ would be required
B) 13 g of CaC₂ would be required
C) 15 g of CaC₂ would be required
D) 17 g of CaC₂ would be required
E) None of the above are correct