The folk art form of Karnataka that involves storytelling through painted scrolls:

Pattachitra
Warli
Kavad
Madhubani

The correct answer is: A) Pattachitra.

Pattachitra is a traditional Indian art form that involves painting stories on scrolls. The art form is believed to have originated in the state of Odisha, but it is also practiced in other parts of India, including Karnataka. Pattachitra scrolls are typically made from cloth or paper, and they are painted with natural dyes. The stories that are depicted on the scrolls often come from Hindu mythology or folklore.

Warli is a tribal art form that is practiced by the Warli people of Maharashtra, India. The art form is characterized by its simple geometric designs and its use of red, white, and black colors. Warli paintings are typically done on mud walls or on cloth, and they often depict scenes from everyday life or from Hindu mythology.

Kavad is a folk art form that is practiced in the state of Rajasthan, India. The art form involves the creation of large, colorful puppets that are used in religious processions. Kavad puppets are typically made from wood or papier-mâché, and they are decorated with intricate designs and patterns.

Madhubani is a folk art form that is practiced in the state of Bihar, India. The art form involves the painting of intricate designs on cloth or paper. Madhubani paintings are typically done in bright colors, and they often depict scenes from Hindu mythology or nature.