The sentence that is an example of a subjective statement in "A Culinary Wasteland" is D, that is, the one that reads "furthermore, Mr. Schlosser's appraisal is not comprehensive but a hodgepodge of impressions, statistics, anecdotes and prejudices".
Subjective statements are based on personal opinions and points of view. They are not facts. On the contrary, objective information includes analysis and is therefore based on facts. It can be measured and prooved.
D is full of words denoting the personal opinion of the writer: comprehensive, hodgepodge of (confused mixture of different things).