The Best Way to Establish Good Litter Box Habits in a Kitten

The best way to establish good litter box habits in a kitten is to:

A) take the kitten to the box whenever it needs to eliminate, grasp its paws, and make scratching motions
B) be sure the kitten observes the queen eliminating in a litter box
C) confine the kitten in a small room with a litter box
D) provide a clean, accessible litter box with fine-grained litter material at a moderate depth