Which is the best use of the transitional phrase “as a result”?

Being a bully’s target is traumatizing. As a result, most kids who are bullied never report it to their teachers or parents.
As a result, most bullies have reasons for their behavior, it still is unacceptable to terrorize other individuals.

Bullies come from a variety of different backgrounds. As a result, many bullies report that they have been bullied in the past.

Victims of bullying find themselves under immense stress. As a result, many of them experience anxiety and depression.