Which of the Following Is One of the Requirements to Establish

Which of the following is one of the requirements to establish the crime of criminal attempt?

A) Criminal attempt is strictly a mental crime, not steps need be taken toward committing the crime just conceptualizing the crime is sufficient
B) This crime requires multiple offenders, one of which must make an overt act toward committing the crime
C) A person intents to commit a crime, he makes a substantial step toward the commission of the act, coming close to actually committing the act
D) The offender commits the act intended but does not actually achieve the desired result