Answer:
A. Isadora Duncan
Explanation:
Isadora Duncan is one of the most famous figures of modern dance. She developed the dance that she found to be "free" and "natural", in sync with the movements that can be found in nature - trees, wind, waves.
She drew inspiration from folk dances and found ballet to be against nature, too strict and not fit for the nature of the human movements.
She introduced everyday actions into her form of dance, like skipping, jumping, walking and running.