[正答]
BC
※国試ナビ4※ [102D018]←[国試_102]→[102D020]
[★]
A
※国試ナビ4※ [102D017]←[国試_102]→[102D019]
B
※国試ナビ4※ [102D019]←[国試_102]→[102D021]
.