Enhancement" refers to any alteration that improves the normal bodily organization, function, health, and appearance. for example, taking steroids, undergoing plastic surgery to improve one's looks, or altering one's genes to improve the physical abilities of future children are all examples of enhancement.

which statement is most accurate?

a-the passage contains a fact that must be supported by evidence.
b-the passage contains an opinion that must be supported by evidence.
c-the passage contains evidence that must be supported by an opinion.
d-the passage contains research that must be supported by an opinion.