参考答案

正确答案：C
解析：Why was the symbol of the Red Cross designed with a Red CrossOn white ground?
本题的选项均为不定式，表明本题可能考查做某事的意图或目的。文中提到“As a tribute to Switzerland, the symbol was a Swiss flag reversed, that is a red cross on a white ground.”作为对瑞纲：的敬意，红十字会的会标是由瑞士国旗改制而成的，设计成白底配红色十字。故正确答案为C)。