The dance form known for its rhythmic footwork and storytelling elements:

The correct answer is: A) Kathak

Kathak is a classical Indian dance form that originated in the northern Indian subcontinent. It is known for its rhythmic footwork, intricate hand gestures, and expressive facial expressions. Kathak is often performed as a storytelling dance, with the dancer using their body to convey the emotions and actions of the characters in the story.

The other options are incorrect because:

• Changu is a traditional dance form of the Garo people of Meghalaya, India. It is a vigorous dance that is performed to celebrate the harvest.
• Ottan Tullal is a traditional dance form of Kerala, India. It is a satirical dance that is performed to criticize social and political issues.
• Bharatanatyam is a classical Indian dance form that originated in the southern Indian subcontinent. It is known for its graceful movements, intricate footwork, and expressive facial expressions.