Select the option that expresses the given sentence in positive degree of comparison.

She is the dullest child in the class.

The correct answer is: No other child in the class is as dull as she.

Key Points

• The given sentence is in the superlative degree.
• To express it in a positive degree, we need to compare her level of dullness without referencing others.
• The sentence starts with "No other child," which sets up a negative construction. This is a common way to express a positive degree comparison by stating that no one else possesses the quality to a greater extent.
• The phrase "as dull as" is a standard construction for making positive degree comparisons.
• In positive degree comparisons, we use "as + adjective + as" to convey equality or similarity in the quality being compared.
• The sentence ends with "as she." In comparisons, it is grammatically correct to use the subject pronoun after "as" rather than the object pronoun.

Therefore, the correct answer is option 3.