question_answer

In a group of persons travelling in a bus, 7 persons can speak French, 14 can speak Spanish and 6 can speak English. In that group, none can speak any other language. If 2 persons in the group can speak two languages and one person can speak all the three languages, then how many persons are there in the group?

A)  21                   

B)  22           

C)  23                   

D)  24