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By computing the present value of the principal paid at maturity and all interest payments to be made over the term of the bond, you can obtain the market price of bonds. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
Answer:
The answer is A
Explanation:
It is A because rock, water, and sand are all abiotic , is is NOT c because algae is a biotic factor