Answer:
B. age
Step-by-step explanation:
Imagine your body is a well-oiled machine. Each part has a role to play to ensure everything runs smoothly. Now, let’s look at the options:
- A. Weak muscles: Think of these as rusty gears in our machine. If the gears are rusty (or muscles are weak), they can’t move as well, limiting the range of motion.
- C. Disease: This is like a glitch in our machine’s system. It can cause parts to malfunction (like arthritis causing joint pain), which can limit how much our ‘machine’ can move.
- D. Bone structure: This is the framework of our machine. If the structure isn’t built for certain movements (like how your elbow joint can’t rotate like your shoulder joint), then those movements are limited.
Now, for B. Age: Age is like the calendar on the wall of our machine’s control room. While it’s true that parts of the machine can wear out over time, age itself doesn’t limit motion. It’s the wear and tear, or how well the machine is maintained that matters, not the date on the calendar. So, age (B) does not inherently limit the range of motion.