There are altogether 6 people in the room, the baby.A. includeB. includingC. includedD. to

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A. include
B. including
(答案→)C. included
D. to include
解析：考察非谓语动词用法，现在分词表示正在发生的伴随性的动作，被动语态表示主语所承受的动作，过去分词表示发生过的被动的动作。根据题意，共有6人在房间里，包括这个婴儿。婴儿是include的动作对象，故选D。