Cung Pí simplifies !"∙!$ ! % to 4 '( . Thuy Lee simplifies the same expression but gets a different answer, 4 (' . Part A: Who is correct? A Cung Pí is correct. B Thuy Lee is correct. C Both of them have equivalent expressions. D Neither Cung or Thuy are correct. Part B: Which properties of exponents did they have to use while simplifying the expression? Select all that apply. Negative Exponent Property Product of Powers Property Quotient of Powers Property Power of a Product Property Zero Exponent property Power of a Power Property Power of a Quotient Property