What is the meaning of “jump in with both feet” in the sentenc

E.“The successful reality TV show programs The King of Comedy and The King of Crossover Singer state the fact that even the entertainment industry is glad to jump into the ' Crossover' trend with both feet.”

A.plummet from the sky

B.put one’s heart and soul into doing something

C.do things recklessly

D.put oneself in someone' s shoes

正确答案：put one’s heart and soul into doing something