The correct answer is C) remove it with a moist cotton-tipped applicator. The reasoning for this is that using a moist cotton-tipped applicator is the safest and most effective way to remove a foreign object from the eye that is not embedded. This method helps to gently dislodge and remove the object without causing further irritation or damage to the eye. The other options are less recommended - rubbing the eye (B) could potentially push the object deeper, using a dry cotton rag (A) could further abrade the eye, and using a match or toothpick (D) risks injuring the eye. According to Coast Guard regulations and standard first aid practices, the moist cotton-tipped applicator method is the preferred technique for safely removing a non-embedded foreign object from the eye.