Answer: The answer is A
Step-by-step explanation:
Electronegativity is the ability to attract electrons. The periodic trend for electronegativity increases up a column and from left to right along a row. Which means that main group metals have low electronegativity and the transition metals have low to medium electronegativity and a small number of valence electrons. Which then leads the metals to not hold on to their valence electrons very tightly and to lose them easily forming cations. So low electronegativity means high metallic character.