For each of the following compound sentences, choose the option that shows where commas need to be added.
For help with this exercise, see chapter 35 of Real Essays 5e.
Example
Some people are more motivated to achieve excellence than other people so psychologists are interested in understanding why.
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People with high achievement motivation have a strong desire to master tasks and they experience great satisfaction when they achieve success.
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In one experiment, researchers gave children a test designed to measure their need for achievement and then they asked these children to play a ring-
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Those children who had scored low on the test stood so close to the target that they always scored or they stood so far away that they always missed.
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In other words, they succeeded at an unchallenging task or they failed at an impossible one.
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In contrast, the children who had scored well on the test stood far enough away from the target to make the game challenging but they did not stand so far away as to guarantee their own failure.
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People with high achievement motivation tend to set challenging but realistic goals for themselves and they are willing to take risks to achieve those goals.
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They experience intense satisfaction from success but they are not discouraged by failure if they feel they have tried their best.
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People with low achievement motivation also prefer success to failure but they usually experience relief at not having failed rather than pleasure or pride at having succeeded.
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They do not tend to seek out feedback from critics nor do they struggle with a problem instead of quitting in the face of failure.
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