With reference to the Early Mesolithic era, consider the following statements:
1. This period is known for substantial increase in human population
2. The climate in this period became warm, marked with increased rainfall
3. The core economy of this period was agriculture
Choose the correct option from the codes given below:

Answer: [B] Only 1 & 2 are correct

This question is a part of GKToday's Integrated IAS General Studies Module