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Regarding the specialized structural features of a sewing machine needle, consider the following statements: A. The long groove is a narrow channel on the blade that protects the upper thread from friction and breakage as it passes through the fabric. B. The short groove is located on the side opposite the long groove and aids in loop formation by reducing resistance when the needle moves upward. C. Both the long and short grooves are located on the blade, which is the working part of the needle that determines its strength and flexibility. D. The short groove is the small notch or indentation that specifically allows the shuttle or hook to catch the thread loop during stitch formation. Choose the most appropriate answer from the options given below: