An observational study determined that there is a strong correlation between sitting close to the television and poor eyesight. Can it be determined that sitting too close to the television causes poor eyesight? Explain. A. Causation cannot be proven because everyone watches television.
B. Causation can be proven because it is well known that sitting close to the television causes poor eyesight.
C. Causation can be proven because an experiment was used to prove this hypothesis.
D. Causation cannot be proven because poor eyesight can occur for other reasons, such as genetics.

D

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D. Causation cannot be proven because poor eyesight can occur for other reasons, such as genetics.

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I did it and got it right.

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

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