Which of the following refers to all types of clothing for men, women, and children?

The term that encompasses all types of clothing for men, women, and children is "apparel." Apparel is a broad category that includes everything from everyday clothing to formal wear, covering all demographic groups. It is the general term used in the fashion industry to refer to garments worn by people, regardless of age or gender.

In contrast, "accessories" refer to items that complement clothing, such as bags, belts, and jewelry, and do not include the clothing itself. "Design details" pertains to specific elements in a garment's design, such as stitching patterns or button placements, which contribute to the garment's style but do not denote the item as clothing. "Fashion trends" relates to the current popular styles and movements in the fashion industry, which can influence what apparel is in demand but does not directly refer to the clothing items themselves. Thus, "apparel" is the most accurate term for all types of clothing across different age groups and genders.