Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the right order to form a meaningful and coherent paragraph.
A. In other words, chess and basketball are contests.
B. As games, chess and basketball are obviously different from leapfrog and playing house.
C. One can win a game of basketball, but it makes no sense to ask who has won a game of leapfrog.
D. The first two games are competitive, the second two are not.