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You have five of these on each hand, and one of them can bend to touch all the others, which helps you grab and hold things.
Fingers are the correct answer because they are the five parts at the end of each hand, and the thumb is special since it can bend and rotate to touch every other finger, a trait called opposability. This is what lets people grip a pencil, pick up small objects, and hold onto things firmly.
Eyelashes grow above the eyes to protect them from dust, not on the hands, and freckles are just small spots of extra pigment on the skin, not body parts used for grabbing, so neither one fits the description at all.
Having an opposable thumb is such a useful trait that scientists think it helped early humans make and use tools long ago.
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