The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother	Choose the most appropriate option:
A) 40  B) 41  C) 42  D) 43  E) 44
Option 42
<result>C</result>
The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother