How to writre Query for select all coloumns from table1,table2 where group by all columns in table1 and specific column in table2

My table structure is like below

    TblMemberInfo          |         TblCarInfo
 MemberID   Name           |         Id     MemberId     CarNumber
    1       Sandeep        |         1         2            1234
    2       Vishal         |         2         1            1111
    3       John           |         3         4            2458
    4       Kevin          |         4         2            1296
    5       Devid          |         5         4            7878
                           |         6         3            4859

I need to query for select all from TblMemberInfo,TblCarInfo where Count(MemberId)=1

      MemberId    Name        CarNumber
        1        Sandeep        1111
        3        John           4859