Lead is much softer than aluminum, and can be more easily deformed or pulled into a wire. What difference between the two materials best explains this? (A) Pb and Al atoms have different sizes. (B) Pb...

Lead is much softer than aluminum, and can be more easily deformed or pulled into a wire. What difference between the two

materials best explains this?

(A) Pb and Al atoms have different sizes.

(B) Pb and Al atoms have different masses.

(C) The stiffness of the interatomic bonds is different in Pb and Al.