[正答]
D
※国試ナビ4※ [100B021]←[国試_100]→[100B023]
[★]
C
※国試ナビ4※ [100B020]←[国試_100]→[100B022]
A
※国試ナビ4※ [100B022]←[国試_100]→[100B024]
.