[正答]
A
※国試ナビ4※ [112B020]←[国試_112]→[112B022]
[★]
C
※国試ナビ4※ [112B019]←[国試_112]→[112B021]
※国試ナビ4※ [112B021]←[国試_112]→[112B023]
.