The answer is D. Straw.
A syringe is a medical instrument used to inject or withdraw fluids. It consists of a plunger, a barrel, and a needle. The plunger is a rod that fits inside the barrel. The barrel is a hollow tube that contains the needle. The needle is a sharp point that is used to penetrate the skin.
Tweezers are a tool used to grasp small objects. They have two thin, pointed blades that are held together by a spring. Tweezers are often used to remove splinters, tweeze eyebrows, and hold small objects in place.
A dropper is a small, cylindrical container with a narrow opening at one end. It is used to dispense liquids in small amounts. Droppers are often used to administer medicine, add food coloring to food, and transfer liquids from one container to another.
A straw is a thin, hollow tube that is used to drink liquids. Straws are often made of plastic, paper, or metal. They are typically used to drink beverages from cups or cans.
The word that is different from the rest is straw. The other three words are all tools that are used to manipulate objects. A syringe is used to inject or withdraw fluids, tweezers are used to grasp small objects, and a dropper is used to dispense liquids in small amounts. A straw, on the other hand, is not a tool. It is a device that is used to drink liquids.