Which of these is true about preexisting conditions?
a. According to HIPAA, a medical insurance company is required to waive waiting
periods for preexisting conditions, provided there has been no lapse in coverage
b. A person diagnosed with asthma 20 years ago who has not needed any medical
treatment for the past 12 years is not considered to have a preexisting condition
c. Pregnancy is considered a preexisting condition
d. All of the above