| Point | Inefficient | Efficient | Attainable | Unattainable |
|---|---|---|---|---|
| A | \( \boxed{\checkmark} \) | | \( \boxed{\checkmark} \) | |
| B | | \( \boxed{\checkmark} \) | \( \boxed{\checkmark} \) | |
| C | | \( \boxed{\checkmark} \) | \( \boxed{\checkmark} \) | |