（KMC-2020-Question 22）  Several teams came to the summer Kangaroo camp. Each team has $$5$$ or $$6$$ members. There are $$43$$ people in total. How many teams are at this camp？  有几支队伍来到了袋鼠夏令营．每支队伍会有$$5$$或$$6$$名队员．如果他们一共有$$43$$人．请问袋鼠夏令营里将会有多少支队伍？ 
选项为:A:$$4$$  B:$$6$$  C:$$7$$  D:$$8$$  E:$$9$$  请回答其中一个选项.