Final answer:
The correct answer to the question is A. Capillary tubes. These are used during skin punctures to collect small amounts of blood for medical analysis through capillary action.
Step-by-step explanation:
The collection devices used in skin punctures are called Capillary tubes. These are small diameter glass or plastic tubes that utilize capillary action to draw blood into the tube, which is then used for medical analysis. Capillary tubes are especially useful when only a small quantity of blood is required, such as during a capillary stick on a finger, an earlobe, or the heel of an infant. Other devices listed, such as butterfly sets, blood culture collection systems, and 25 gauge needles, are used for different types of blood collection methods, primarily venipuncture. Phlebotomists are trained to use the appropriate blood collection device depending on the amount of blood needed and the clinical situation.