【很急的选择题】He always tell ---- truth.He never tells ----- lie

【很急的选择题】He always tell ____ truth.He never tells _____ lie
He always tell ____ truth.He never tells _____ lie
A.the……the
B.the……a
C.a……the
D.the……a
【很急,今天9:00前就要,最好附上解释（解释的越好被采纳的可能越大）,谢谢大家的帮助!】
【注：D是不对的】