Which of the Following Is True About the Breach of Duty

Which of the following is true about the breach of duty?

A) A person is guilty of breach of duty if he or she exposes another person to a foreseeable and unreasonable risk.
B) Even if the defendant exercised reasonable care,he/she is liable for the plaintiff's injury.
C) Only when the defendant's actions violate statutes,it is regarded as breach of duty.
D) It requires that a plaintiff must conduct himself/herself like a "reasonable person of ordinary prudence in similar circumstances."