2020 Environment - Wildlife, Indian Elephants

With reference to Indian elephants, consider the following statements :1. The leader of an elephant group is a female.2. The maximum gestation period can be 22 months.3. An elephant can normally go on calving till the age of 40 years only.4. Among the States in India, the highest elephant population is in Kerala.Which of the statements given above is/are correct?

• 1 and 2 only
• 2 and 4 only
• 3 only
• 1, 3 and 4 only