There are 3 bags of flour. Bag B weighs thrice as much as bag A and bag C weighs 4 kg less than bag B. If bag A weighs 6 kg, how heavy is bag C?

• A.  \[52\text{ }kg\]                               
• B.                         \[18\,kg\]          
• C.                         \[22\,kg\]                          
• D.                         \[14\,kg\]