Question

Which sentence is a good opening topic sentence for the following text?

Vitamin D helps the body absorb calcium and phosphorous. It assists the body by increasing the amount of calcium absorbed from the small intestine. This in turn forms and maintains bones. Vitamin D plays a crucial role in immunity and controlling cell growth. It protects the body like a soldier and helps the body fight infections. It is important that children get adequate amounts of vitamin D to develop healthy teeth and bones. The main source of vitamin D is milk. Vitamin D is also found in herring, salmon, and sardines. Cod liver oil is another source of vitamin D. Our skin also produces vitamin D from sunlight. However, for the skin to absorb vitamin D from sunlight, it needs to be exposed to sunlight. About 15 minutes of exposure twice a week is enough for the skin to produce vitamin D. The skin can be exposed to the sun while taking a walk or playing outside.

Answer 1

Answer: C.) Vitamin D is a vital nutrient required for maintaining a strong and healthy body.

Explanation: I took the test and got 100%.

Answer 2

C...Vitamin D is a vital nutrient required for maintaining a strong and healthy body.

Step-by-step explanation:

An opening topic sentence is supposed to be a holistic introduction to the entire text. It must stress the main idea of the text being discussed. The supporting details come after the topic sentence to provide more information and develop the topic sentence. In this instance, the text is talking abut the importance of Vitamin D to the body. It further mentions sources of vitamin D which include; fish, milk, Cod liver oil and sunlight.

A good opening topic sentence for this text is one that mentions the primary importance of Vitamin D, and its role of maintaining a strong and healthy body. So the sentence: "Vitamin D is a vital nutrient required for maintaining a strong and healthy body", is a proper opening topic sentence.