D)     3,     5,     7

                             1.  The layout of the autoroutes.
                             2. The location of the main mining centres.
          Correct !    3. The type of land division in the countryside.

                             4. People's attachment to democratic institutions.
          Correct !    5. Adaptation to a somewhat harsh environment.
                             6. Openness to multicultural immigration.

          Correct !    7. Language as an expression of Quebec's identity.
                             8. A tendency to maintain a low birth rate.
                             9. A predominantly urban population.