Which Army Regulation outlines the responsibilities of warrant officers?

The correct choice identifies Army Regulation 600-100 as the one that outlines the responsibilities of warrant officers. This regulation specifically focuses on the roles and duties of warrant officers within the Army structure, providing a framework for their authority, responsibilities, and professional development. It ensures that warrant officers understand their unique position as technical experts and leaders within their respective fields, which is vital for maintaining operational effectiveness and supporting mission success.

The other regulations listed encompass different areas of Army operations. For example, Army Regulation 350-1 pertains to Army training and leader development, while Army Regulation 670-1 deals with the wear and appearance of Army uniforms. Army Regulation 750-1 focuses on the maintenance of supplies and equipment, which is unrelated to the specific responsibilities and leadership role of warrant officers. Therefore, understanding the content and focus of these regulations reinforces the distinction of Army Regulation 600-100 as the correct source for the responsibilities of warrant officers.