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27 September, 23:58

Research was done to study the facial expressions of people, since facial expression clearly shows the emotional state of a person. Researchers found that people who smiled a lot lived longer than those who didn't smile much.

Which statement can be inferred from the passage?

Smiling prolongs human life.

Smiling is associated with human longevity.

Smiling decreases a person's life span.

There is no link between smiling and human longevity.

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  1. 28 September, 00:06
    0
    B

    A is wrong because you can't infer a cause and effect relationship between smiling and long life (other factors might be at work)

    C and D are clearly wrong
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