What is the age of Teja? A: Four years ago, Raju was as old as Teja is at present. B: Sita’s present age is two times of Raju’s present age. C: The average age of Teja and Sita is 19 years.

A) Any two statements are sufficient to give answer

B) Only C is sufficient

C) All of three statements are necessary to give answer

D) Even using all the three statements answer cannot be found