The pre writing stage of the writing process include selecting a subject, setting a purpose and DETERMINING THE MAIN IDEA OF YOUR ESSAY AND ORGANIZING YOUR IDEAS AND FACTS IN A WAY THAT DEVELOP YOUR MAIN IDEA.
Pre writing stage is the phase of the writing process which involves gathering and selecting of ideas to write on.
The correct option is B.
In the question given above, you are to develop an essay that is in favor of vegetable farming. The two objects that are been compared here are vegetables and lawns. Thus, any resource that will be used in supporting your argument must be one that deals with the relationships, benefits and the demerits that exist between keeping a front lawn and keeping a vegetable garden. Looking at all the options given above, it is only option B that expresses the relationship between the two.