Questions: Which of these mutations would best be described as beneficial? Choose 1 answer: A a mutation that prevents a person's blood from clotting normally (B) a mutation that does not affect a person's observable traits (C) a mutation that lowers a person's risk of getting heart disease

The answer is (C): a mutation that lowers a person's risk of getting heart disease.

Explanation for each option:

• (A) a mutation that prevents a person's blood from clotting normally: This would likely be harmful rather than beneficial, as it could lead to excessive bleeding and difficulty in stopping blood loss from injuries.
• (B) a mutation that does not affect a person's observable traits: This mutation is neutral, as it does not have any noticeable effect on the person's health or traits.
• (C) a mutation that lowers a person's risk of getting heart disease: This is beneficial because it reduces the likelihood of developing a serious health condition, thereby potentially increasing the person's lifespan and quality of life.

Summary: The mutation that lowers a person's risk of getting heart disease is the most beneficial, as it has a positive impact on health.