Venn Diagrams - Verbal and Reasoning

Directions to Solve
In the following figure small square represents the persons who know English, triangle to those who know Marathi, big square to those who know Telugu and circle to those who know Hindi. In the different regions of the figures from 1 to 12 are given.
Q1:

How many persons can speak all the languages ?

A 1

B 8

C 2

D None

ANS:D - None

Explanation: There is no such person who can speak all the languages.