The correct answer is "c) gallery." A set of choices often displayed as pictures in a grid or a list is commonly referred to as a gallery. To arrive at this answer, you could eliminate the other options (a, b, and d) by understanding their definitions and determining that they do not fit the description provided. Option "a" (toggle) typically refers to an on/off switch or button, not a set of choices. Option "b" (menu) usually refers to a list of options that can be selected from a drop-down or pop-up menu, but it does not specifically refer to a gallery of pictures. Option "d" (checkbox) is a type of button or control that allows users to select or deselect multiple options, which is different from a gallery. Therefore, the most suitable answer is "c) gallery."
