IMAT 2012 Q62 [Transition Metals]

Which one of the following is NOT correct about Fe, Cu and Zn, which are in the first row of the transition metals?

A. They all form basic oxides.
B. They all have densities greater than those of Group 1 metals.
C. They are all reactive metals.
D. All of them form {M^{2+}} ions.
E. Only two of them form coloured ions.