The phrase that shows that a reader is engaging in metacognition while reading "Pyramus and Thisbe" is:
"I think that Thisbe dropping her veil is going to be very important." (Option C)
What is Metacognition?
Metacognition is the process of a person being aware of and understanding the process that goes on in their mind.
Notice that in the option selection, the thinker is actually talking about their own thoughts, hence the correct answer is C.
Learn more about metacognition at:
https://brainly.com/question/21765396
