Study the following statements: (a) At school one learns the language of educated people. (b) Language learnt on the street includes the use of slang.

The passage explicitly states: 'In the classroom, the student is more likely to learn the grammatical language of educated people.' This confirms statement (a). It further states: 'The language learnt out of necessity often lacks the fine details of the classroom variety and might include informal expressions such as slang.' This confirms statement (b). Hence both statements are correct, making option (3) the right answer.