Andrew takes $$15$$ minutes to wash up in the morning, $$20$$ minutes to have his breakfast, $$6$$ minutes to pack his school bag, $$8$$ minutes to walk to his friend\textquotesingle s house before going to the school together. From his friend\textquotesingle s house to the school, it will need $$26$$ minutes. The school rules require you to arrive at $$8.00 \rm{a.m.}$$ every morning, what\textquotesingle s the latest time he needs to leave his house? 
选项为:A:$$6.45 \rm{a.m.}$$  B:$$7.00 \rm{a.m.}$$  C:$$7.26 \rm{a.m.}$$  D:$$7.34 \rm{a.m.}$$  E:None of the above  请回答其中一个选项.