Corrosion of metals — practice question

Which statement gives the reason galvanising stops iron from rusting?

• AZinc is more reactive than iron and corrodes in preference to iron.
• BZinc is more reactive than iron and loses electrons more easily than iron.
• CZinc is less reactive than iron and corrodes in preference to iron.
• DZinc is less reactive than iron and loses electrons more easily than iron.