[正答]
C
※国試ナビ4※ [109I017]←[国試_109]→[109I019]
[★]
※国試ナビ4※ [109I018]←[国試_109]→[109I020]
E
※国試ナビ4※ [109I016]←[国試_109]→[109I018]
.