cloze test

Dear friends, I met a cloze text in my exam. I was puzzled by the first question, because the right answer was A (group), but I thought C(team) was also right. Could anybody show me the different between "group" and "team"?

Last Wednesday afternoon, a _1_ from our school visited Exbury Castle. It was built in the fourteenth century. When we arrived, we walked _2_ the grass in front of the castle to the main entrance. Inside the castle there was an exhibition. It told the story of the first two centuries of the castle's like. _3_ there were models in the clothes of that period. Downstairs we went into the stables. There were models of horses. It was very strange, because they looked like horses and smelt like horses and one of them was moving its tail........
( )1. A group B people C team D number
( )2. A off B along C above D across
( )3. A To see B On show C For seeing D across