What is the task, audience and pourpase of this small prompt

Magnesium is the fourth most abundant mineral in the body and is essential to good health. magnesium is needed for more than 300 biochemical reactions in the body. it maintain normal muscle and nerve function, keep bones strong, keep one’s heart rhythm steady, and supports a healthy immune system. magnesium also regulate blood sugar levels, promotes normal blood pressure, and may play a role in energy metabolism and protein synthesis. doctors and scientists are trying to determine whether magnesium may play a role in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes. which is the main idea of this paragraph? a. the role of magnesium in human nutrition is being studied intensely. b. magnesium may be related to the body’s metabolism and other healthy functions. c. magnesium appears to contribute to hypertension, cardiovascular disease, and diabetes. d. magnesium and a healthy immune system are separate diseases.

30 points! : ) also! question number two! analyze the connection mlk makes between the emancipation proclamation and the current situation african americans were experiencing. a; martin luther king was speaking about the need to free african americans from slavery, just like abraham lincoln did years ago. b; martin luther king makes the point that 100 years after slaves were freed by the emancipation proclamation, they are not truly free due to continued segregation. c; martin luther king thought life was going very well for african americans, and no further action needed to be taken. he showed extreme gratitude to abraham lincoln. d; martin luther king expressed extreme anger towards abraham lincoln for not ending segregation.

Choose the form of the modifier that best completes the sentence. jerry can play dominoes better anyone anyone i've ever seen anyone else i've ever seen anyone i've never seeb