When a 2.00 gm sample of rock containing lime stone was dissolved in acid 0.44 gm of `CO_(2)` was generated. If the rock contains no carbonates other than `CaCo_(3)`, What was the percent of `CaCO_(3)` by mass in the limestone?
A. 0.5
B. 0.64
C. 0.86
D. 0.92
