8. ________ is the most common and preventable chronic disease in childhood. (1 point)

The common cold
Cystic fibrosis
Hypertension
Dental caries

http://littlepeoplesdental.com/wp-content/uploads/2010/07/Dental_Caries_almost_100_percent_preventable.pdf

so its D

Correct.

Hey,Thank you so much.

To find the answer to this question, we can analyze the given options and determine which one matches the description of being the most common and preventable chronic disease in childhood.

1. The common cold: While the common cold is indeed a prevalent illness among children, it is not a chronic disease. It is an acute viral infection that typically resolves within a few days.

2. Cystic fibrosis: Cystic fibrosis is a genetic disorder that affects the lungs and other organs. While it is a chronic disease, it is not preventable as it is inherited genetically rather than being caused by preventable factors.

3. Hypertension: Hypertension, or high blood pressure, is a condition that is more commonly associated with adults rather than children. While it can occur in childhood, it is not the most common chronic disease in this age group. Additionally, it is not always preventable as it can be influenced by both genetic and lifestyle factors.

4. Dental caries: Dental caries, also known as tooth decay or cavities, is the correct answer. It is the most common and preventable chronic disease in childhood. Tooth decay occurs due to bacterial action on the teeth, primarily caused by poor oral hygiene, high sugar intake, and inadequate dental care.

Therefore, the answer to the question is "Dental caries."