Describe one likely result if the placenta became damaged and could not maintain progesterone levels

The lack of progesterone.

Explanation:

without progesterone, the placenta will become harmful to both mother and baby. The placenta is responsible to send nutrients to the baby.

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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c8h10 is your answerr