Which of the Following Statements About Medical Liability Is False

Which of the following statements about medical liability is false?

A) In the 1970s, medical liability insurance premiums rose rapidly, and some types of insurance were simply not available.
B) The most frequent type of claims brought against physicians today allege failure to diagnose, failed surgery, or improper treatment.
C) Defensive medical costs are not incurred under today's tort liability system.
D) Several solutions for dealing with the medical liability problem have been proposed, but none address the problem of professional incompetence.