The answer is B. While both sides agree that processed foods are more convenient, the damage they do to a person's health should not be ignored. This statement says, "While both sides agree..." which shows that there is common ground between the opposing claims.
Answer: B. While both sides agree that processed foods are more convenient, the damage they do to a person's health should not be ignored.
"Finding common ground" means trying to find the areas in which both sides of a debate agree on. In this example, both sides on the debate on processed foods agree that this type of foods are more convenient. Finding common ground when addressing a counterclaim can ensure that both sides listen to the statement, instead of one side feeling alienated or ignored.
This is a SIMILE - if words such as 'as' or 'like' are used in order to compare two things (in this case, 'giant rocks with razor edges crouch LIKE a sea monster with wide open jaws'), then it is a simile.
