Sue’s husband forgot their anniversary. sue views her husband’s behavior as something he did because his boss assigned him a big project at work and she does not think he’ll do something like this in the future. sue is making what kind of attribution?

Attribution theory is theory that explains  how and why ordinary people explain events as they do.
There are two types of attributions:internal , in which the cause of the behavior is due some internal characteristic, rather than to outside forces and external, in which the cause of the behavior are situations outside person's control. 
The fact that sue views her husband’s behavior as something he did because his boss assigned him a big project at work means that she is making an external kind of attribution. 

How either some or all of the organisms in this activity are related to one another based