With reference to pulse production in India, consider the following statements:
1. Black gram can be cultivated as both kharif and rabi crop.
2. Green-gram alone accounts for nearly half of pulse production.
3. In the last three decades, while the production of kharif pulses has increased, the production on rabi pulses had decreased.
Which of the statements given above is/are correct?
1. 1 only
2. 2 and 3 only
3. 2 only
4. 1, 2 and 3