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Consider looking up the words -- http://www.answers.com -- and determining if any of the words in the sentence have a positive, neutral, or negative connotation.
negative
The following sentence indicates a negative bias. The phrase "exhibited lethargy and shortsightedness" suggests a negative view of the democracies' response to fascist aggression. Therefore, the correct answer is c) a negative bias.
The given sentence indicates a negative bias. In order to determine the bias of a sentence or text, you can look for words or phrases that express a particular viewpoint or judgment towards a subject. In this case, the use of the words "lethargy" and "shortsightedness" suggests a negative judgement towards the behavior of democracies in response to fascist aggression. The sentence is critical of their actions, which indicates a negative bias. Hence, the correct answer is c) a negative bias.