The BEST thesis statement for this outline is C. Workplace bullying hurts a company as much as it hurts individual​ workers, so employers should crack down on this widespread form of harassment by​ establishing, enforcing, and maintaining a formal​ anti-bullying policy.
What is a thesis statement?
A thesis statement is the topic sentence of a write-up or speech. Â It establishes the writer's claim or argument about the topic.
Given its importance in a write-up, the thesis statement must be written in the introduction so that ambiguity is not created in the reader's mind about the topic being addressed.
Thus, the BEST thesis statement for this outline is Option C.
Learn more about thesis statements at https://brainly.com/question/17915079