You mean ordinary or plain?

"God must love the common man; He made so many of them"

Abraham Lincoln, 16th president, 1861-1865

This one is hard to pin down.

Let's focus on the word common. It could mean a)ordinary- conforming  to the regular order of things. Or b)(I think a better interpretation)-plain- suggesting homely simplicity. ie-plain hard working people.

I vote for B.