[正答]
C
※国試ナビ4※ [104I016]←[国試_104]→[104I018]
[★]
A
※国試ナビ4※ [104I015]←[国試_104]→[104I017]
CE
※国試ナビ4※ [104I017]←[国試_104]→[104I019]
.