Here's a problem to solve: In a comparison of metals to nonmetals, metals tend to have

Among the 4 following options, which is the correct answer?

- A: lower melting points and greater conductivity than nonmetals.
 
- B: lower conductivity and lower density than nonmetals.
 
- C: higher density and lower melting points than nonmetals.
 
- D: greater conductivity and higher melting points than nonmetals.
 