Which statement best conveys how the author achieves his purpose in this excerpt

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.

You have to go. you have to, yer the only doctor. go ahead on, you," bruh fox say. big doc rabbit went down to the brook again. the water was so cool and ribbly and it kept the crock of cream so fresh and cold. doc rabbit drank about half of the cream this time. then he went back up to brother fox with the hard labor of raisin the roof. heard tell about this phrase remind readers that these stories were usually told, not read. which line from the excerpt is an example of personification?

In the play "sorry wrong number"which part of the story can you find heightened tension and suspense?