[正答]
A
※国試ナビ4※ [105B020]←[国試_105]→[105B022]
[★]
※国試ナビ4※ [105B019]←[国試_105]→[105B021]
C
※国試ナビ4※ [105B021]←[国試_105]→[105B023]
.