A)True.
In order to maintain relationships (both social and business relationships) a level of mutual kindness to each other is vital. Without kindness, a connection is impossible to be made. Additionally, if everyone was unkind, the world would be a much colder place than it is currently. Without kindness, compassion doesn't exist, which may result in social incompetence and increased wars and fighting.
Common (i need 20 characters so ummmm yay)
I am pretty sure that the coreect answer which show the similarities of rock pile and the apartment in the rock pile by James Baldwin is being revealed be the second statement from the scale represented above : Both have a feeling of danger. And if more that one is possible, I'd choose this one : Both are centers of the community.