In general along the period from left to right, size decreases and metallic character decrease. In general down the group, size increases and metallic character increases. B′<A′( size )C′>A′( size ) D′<C′( size )D′>B′( size ) B′<A′( metallic character ) D′<C′( metallic character ) B′+<A′+( size ) D′+<C++(size ) ∴C statement is incorrect.