How does twain's decision to describe Mr. Bixby's smile as bland and sweet affect the text? A. These words add a sense of justice to the text because they show that Bixby does not care about twains problems

These words add humor to the text because they highlight the contrast between the demeanors of Twain and Bixby at this moment.

Explanation:

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but i think it is 2

the correct answer is a "it describes nora and mrs. linde's relationship". opcions b and d are not related to the content of the passage in any way. option c could be appropiate but it does not fully capture the effect of the dialogue, while option a is quite appropiate, since the dialogue not only exemplifies the relationship between the characters, but it also captures the effect in the excerpt. we get to know that mrs linde bosses around and already knows nora.