【正确答案】 C

【答案解析】[理由] 本句测试下列固定句型：
have no option but to V 没有选择，只好……
=have no choice but to V
=have no alternative but to V
[例] Bill had no option but to compromise with his boss
=Bill had no choice but to compromise with his boss.
=Bill had no alternative but to compromise with his boss.
(比尔没有选择，只好与他的老板妥协。)
根据上述，(C)应为正选。