Final answer:
The best option when something slips through your fingers is to let it fall and retrieve it from the ground, as trying to catch it with other body parts can lead to further mishaps or injuries.
Step-by-step explanation:
When you try to grab something but it slips right through your fingers, the best option is to let it fall and retrieve it from the ground. Option C is the correct answer. This is because when an object slips through your fingers, it indicates a lack of proper grip or control. Trying to catch it with your other hand or foot may result in further mishaps or potential injuries. Removing your shoe (Option E) is unnecessary and impractical in this situation.