单选题 Their business was successful as they now had a compatible board of directors.
A. experienced B. competitive
C. harmonious D. powerful

【正确答案】 C

【答案解析】experienced：有经验的；competitive：有竞争力的；harmonious：和谐的，协调的；powerful：强有力的。题中compatible意为“融洽，协调”，故可知C选项符合题目要求。