单选题 He was given a present in acknowledgement of his work for the business.

【正确答案】 D
【答案解析】acknowledgement承认,致谢,感谢。recognition承认,认可。in recognition of承认…而,为酬答…而,按照(功劳等)。honor敬意。realization实现。encouragement鼓励,激励。