1. a) Correct - double
   b) Correct - double
   c) Incorrect since savinacc not declared.
   d) Incorrect since the structure tag cannot be used in this way.

2. A X={10, 15};

3. a) Illegal - x is private
   b) Legal   - x is public
   c) Illegal - z is private
   d) Illegal - z is private

4. void Temp::set(double new_deg, char f_or_c)
   {
      deg=new_deg;
      scale=f_or_c;
      return;
   }