Step 1: Recall what the Chipko Movement was about.
It was a 1973 movement where villagers, especially women, hugged trees to stop them being cut down for logging.
Step 2: Recall where it took place.
It started in the Himalayan hill areas of what is now Uttarakhand, then still a part of Uttar Pradesh, led by people like Sunderlal Bahuguna and Chandi Prasad Bhatt.
Step 3: Match to the given options.
Of the four states listed, only Uttarakhand fits this history.
Hence, the correct answer is option (C), Uttarakhand.