The effect Meryl's dialogue creates is surprise, because she believes that her sister is vain, as is stated in option B and further explained below.
In literature, if a character has a conversation with him or herself, we have what is called a monologue. A dialogue, on the other hand, is a conversation involving two or more characters. Dialogues are used to further the plot, revealing information about events and characters.
In the dialogue we are analyzing here, the effect that is created is one of surprise. Meryl believes her sister is vain, as we can see through the conversation.
With the information above in mind, we can select option B as the correct answer.
Learn more about dialogue here:
https://brainly.com/question/6950210
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