Children clearly have a reasonably sophisticated understanding of what is real and what is pretend.
Conclusion (clearly = opinion)
Children clearly have a reasonably sophisticated understanding of what is real and what is pretend.
Evidence
You can ask them which thing is real and which thing is pretend, and they generally get it right.
Even when you see a kid running away from a dad who's pretending to be a lion, the kid doesn't legitimately think the dad is a lion or else she wouldn't be squealing in delight.
Evaluate
Whenever we do Main Conclusion, we know that they have two main tricks for hiding the conclusion from us. The conclusion in 90% of Main Conclusion questions is either 1. the very first sentence 2. some Pivot / Rebuttal idea
So when we read a Main Conclusion paragraph, we read that first sentence thinking there's almost a 50% chance that the very first claim is the Main Conclusion.
Does this first sentence sound like an opinion coming from our author?
Yes! It's wearing an Opinion Indicator, "clearly".
Does the rest of the paragraph seem to be supporting that claim in the first sentence?
Yes, everything else in this paragraph is helping to support the claim that kids know the difference between real and pretend.
Goal
Find the answer with the best meaning-match for the first sentence.