The correct answer is C. marquee-direction.
The marquee-direction property specifies the direction in which a marquee should move. The possible values are left, right, up, and down.
The marquee-style property specifies the style of the marquee. The possible values are scroll, slide, and alternate.
The marquee-play-count property specifies the number of times the marquee should play. The possible values are infinite and once.
The marquee element is a deprecated HTML element that is used to create a scrolling text effect. It is not supported by all browsers and should not be used in new web pages.