When the Following Equation Is Balanced,the Coefficient of HCl Is

When the following equation is balanced,the coefficient of HCl is ________. CaCO₃ (s) + HCl (aq) → CaCl₂ (aq) + CO₂ (g) + H₂O (l)

A) 1
B) 2
C) 3
D) 4
E) 0