The country that took note of China and sent help to Communists was the c. the United Soviet Socialist Republic.
The United Soviet Socialist Republic (USSR) was a Communist nation that was dedicated to spreading communism around the world.
After WWI when there was a growing communist movement in China, the USSR sent them support in order to get a Communist country established there.
Find out more on the USSR at https://brainly.com/question/2731782.