CAN SOMEONE PLEASE ANSWER THESE STEP BY STEP!

Problem 24: If the return on stock YYY has a higher standard deviation than the return on stock ZZZ, then A) YYY must have higher beta than ZZZ B) YYY must have lower beta than ZZZ C) The expected return on YYY must be higher than the expected return on ZZZ D) Both (A) and (C) E) None of the above Problem 25: Consider a project that requires some investment today and generates a non- negative cash flow in the future. Which of the following statements is correct: A) If NPV>0 then IRR>WACC B) If NPV>0 then PI>1 C) If IRR>WACC then NPV>O D) Exactly two of the above statements are correct E) All statements (a), (b) and (c) are corrects F) None of the above