Which of the Following Statements Best Describes the Current Knowledge

Multiple Choice

Which of the following statements best describes the current knowledge regarding the effects of exposure to low doses (<20 rad) of ionizing radiation?

A) It causes cancer after a certain amount of radiation has been received.
B) Depression of the white blood cell count is followed by acute gastrointestinal distress.
C) Birth defects will occur if the patient is pregnant.
D) There is increased risk of cancer, leukemia, birth defects, and cataracts.