Answer:
D). A Concluding Statement.
Step-by-step explanation:
As per the question, the given evaluation misses a 'concluding statement' that prevents a closure in the evaluation. A concluding statement is quite essential as it not only functions to bind the argument together and add cohesiveness to it. Since Gunther misses the concluding statement, the readers are unable to receive a 'sum up' of the evaluation along with the judgment and concluding remarks of the author which not only reiterates the key ideas together but also brings a closure. Thus, option D is the correct answer.