The sentence that contains an illogical comparison is, Her garden is more weed-free than any other garden in the neighborhood. The correct answer is option B. Why does this sentence have an illogical comparison. In this sentence, it should not use the word "more" because "more" is only used when only two objects or persons are compared. In this sentence, what is being compared is "her garden" from the rest of the gardens in the neighborhood. Therefore, this should use the superlative form instead. Her garden is the most weed-free than any other garden in the neighborhood.
