To determine the correct requirement by law for children to ride in a federally tested and approved car seat, let's carefully examine the given options:
1. Option A: Under 5'3" in height and under 16 years old
- This option suggests a relatively higher height and age limit for the use of a car seat. Federally tested car seat requirements are generally more stringent to ensure safety for younger and smaller children.
2. Option B: Under 4'9" in height and under eight years of age
- This option proposes a height of under 4'9" and an age under eight years, which aligns with common safety standards to protect smaller and younger children.
3. Option C: Six years or less and under 3'2" tall
- This option specifies children who are six years or younger and under 3'2", a much lower height compared to the other options. Standards usually focus on a higher height limit for safety reasons.
Considering these options and their alignment with typical legal safety standards, the correct answer, which matches the law requirements for children to ride in a federally tested and approved car seat, is:
Option B: Under 4'9" in height and under eight years of age
