animation-play
animation-delay
animation-fill-mode
animation-play-state
Answer is Wrong!
Answer is Right!
The correct answer is C. animation-fill-mode.
The animation-fill-mode CSS property defines which property values to apply to the element before the animation begins (if delayed) and after it ends.
The animation-play CSS property defines when an animation should start playing.
The animation-delay CSS property defines how long an animation should wait before starting.
The animation-play-state CSS property defines whether an animation is playing or paused.