Total number of bones found in child

The correct answer is B. 206.

A newborn baby has 300 bones, but some of these bones fuse together as the child grows. By the time a child is 20 years old, they will have 206 bones.

The bones in the skull fuse together first, usually by the age of 2. The bones in the hands and feet fuse together last, usually by the age of 18.

The fusion of bones is a normal part of growth and development. It helps to strengthen the bones and make them more stable.

Here is a brief explanation of each option:

• Option A: 200 bones. This is incorrect because a newborn baby has 300 bones.
• Option B: 206 bones. This is the correct answer because a child has 206 bones by the time they are 20 years old.
• Option C: 300 bones. This is incorrect because a child has 206 bones by the time they are 20 years old.
• Option D: 306 bones. This is incorrect because a child has 206 bones by the time they are 20 years old.