The traditional folk dance form known as 'Bihu' is primarily associated with which of the following Indian states?

The correct option is Assam.

Explanation:
1. Bihu is the iconic traditional folk dance form associated with the state of Assam. It is performed during the Bihu festival, which celebrates the agricultural cycle and harvest seasons of Assam.
2. Both men and women participate in this vibrant dance, wearing traditional Assamese attire such as Mekhela Chador and performing to traditional instruments like the dhol, pepa, and gagana.
3. Key dance forms associated with the other options are:
• Gujarat: Garba and Dandiya Raas
• Punjab: Bhangra and Giddha
• Odisha: Odissi and Ghumura