The tone of the author's statement can best be described as

Ambivalence implies a mixture of conflicting feelings or uncertainty about a subject. However, the author’s statement shows a definitive stance against contemporary fiction rather than any indecision or mixed feelings. Therefore, ambivalence does not accurately capture the author's clear contempt.

Humor typically involves light-heartedness or wit, intending to amuse the audience. The author's statement, however, conveys frustration and critical reflection rather than any comedic elements. There is no indication of humor in the tone, making this choice incorrect.

An impersonal tone suggests a lack of emotional involvement or personal connection. In this case, the author’s passionate opinion about contemporary fiction demonstrates a strong personal viewpoint, contradicting the notion of an impersonal tone.

A distraught tone conveys extreme emotional distress or agitation. While the author expresses dissatisfaction, the language used does not indicate distress but rather a critical and dismissive attitude towards the literature, making this choice inappropriate.