Explanation:

- Ambubachi festival is a significant and traditional festival celebrated in Assam, India.

- This festival marks the annual menstruation of the goddess Kamakhya, who is associated with fertility and procreation.

- It attracts thousands of devotees who visit the Kamakhya Temple in Guwahati.

- Held every year during the monsoon season, the festival symbolizes the fertility cult of the Earth.

Option 1: March

- March is not associated with the Ambubachi festival.

Option 2: December

- December is unrelated to the menstruation ritual that the festival observes.

Option 3: January

- January doesn't align with the timing of Ambubachi, which is linked to the monsoon.

Option 4: June

- The festival is celebrated in June, coinciding with the monsoon rains in Assam.