Maria is concerned because she has been exposed to a small amount of radiation during an X-ray. What is her doctor most likely to tell her?

A small amount of radiation from a routine X-ray is unlikely to cause a noticeable effect on health. Radiation can act as a mutagen, so choice C is incorrect, but the risk from a small exposure is generally very low. The doctor would most likely reassure Maria that small amounts of a mutagen often do not affect health.

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