Read the following statements carefully:1.The Kolkata Municipal Corporation (KMC) has installed first of its kind high-end reverse transcription-polymerase chain reaction (RT-PCR) machines in India.2.These are for quick detection of diseases like dengue, tuberculosis and swine flu.3.These machines are to serve as a ‘third umpire’ in situations when medical reports and blood tests reveal contradictory results.Which of the above statements is/are correct?

• A. Only 1
• B. Only 1 and 2
• C. Only 1 and 3
• D. Only 2 and 3
• E. All are correct