Larry Norton was charged with felony murder as a result of his...

Larry Norton was charged with felony murder as a result of his setting fire to Linda Crabtree's home. Linda was upstairs sleeping when the fire was set and she died in her bed during the fire. 

 

If Larry can prove the facts to support his defense, which of the following would least likely remove liability for felony murder?

 

A) Larry did not intend to kill Linda

B) Larry was insane when he set the fire

C) Larry was coerced by someone else to set the fire

D) Linda died of a heart attack before the fire spread to her bedroom

 

Explain your answer.