IRR and NPV

(Question)
"The net present value (NPV) of the apartment complex investment is positive and that the internal rate of return (IRR) is less than required rate of return."

Are the statements correct?

A. Only the NPV statement is correct.
B. Only the IRR statement is correct.
C. Both the NPV and IRR statements are correct.

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Answer: A

-CF₀ + CF₁/(1+r)¹ + ... + CF_n/(1+r)ⁿ > 0
-CF₀ + CF₁/(1+IRR)¹ + ... + CF_n/(1+IRR)ⁿ = 0
Then IRR > r