Correct Answer:
C. 300
The correct answer is 300 because infants are born with a skeleton containing roughly 300 separate elements composed largely of flexible cartilage.
- Step 1 (Skeletal Development): A newborn infant has roughly 94 more bones than a fully grown adult. This flexible structural design is essential to allow the baby to fit safely through the birth canal and accommodate rapid infant growth.
- Step 2 (The Ossification Process): As the child develops through childhood, a biological process called ossification takes place. This causes separate soft cartilage segments to gradually fuse together into solid bone, lowering the total count to 206 by adulthood.
- Incorrect Options:
- 200 is incorrect because it falls below the standard adult skeletal baseline count of 206 bones.
- 250 is incorrect because it underrepresents the true separate bone segment configurations found at birth.
- None of these is incorrect because 300 is the widely accepted biomedical average benchmark.