The correct answer is D. inline.
The display property specifies the type of box that an element generates. The inline value treats the element as an inline box. Inline boxes are displayed one after another on the same line. They can be floated, but they cannot be absolutely positioned.
The inline-block value treats the element as an inline box that can be floated and absolutely positioned.
The list-item value treats the element as a list item. List items are displayed in a list, and they can be indented and have a bullet or number next to them.
The block value treats the element as a block box. Block boxes are displayed on a new line, and they can be floated, absolutely positioned, and have a width and height.