You are writing an essay with the following organizational structure: i. product x a. cost b. appearance ii. product z a. cost b. appearance which of the following best describes the organizational structure used to compare the two products? a. general aspects of each subject are discussed, then the specifics. b. the development of each subject over a period of time is discussed. c. each point of comparison is discussed in turn. d. all aspects of one subject are discussed, then the aspects of the other.