Which statement shown below is true about distributing exponents?

• A. You may distribute exponents across sums only when the exponent is even, but for odd exponents, you must keep the parentheses intact and compute directly
• B. Exponents distribute across addition and subtraction just like they do across multiplication, so ${(a+b)}^n=a^n+b^n$ for integer $n$, which is why product and quotient rules aren't necessary in most algebraic manipulations
• C. Exponents distribute over multiplication and division of factors, so ${\left(\frac{ab}{c}\right)}^n=\frac{a^n{b}^n}{c^n}$, but you cannot distribute an exponent across a sum or difference; in general, ${(a+b)}^n\ne a^n+b^n$
• D. Distributing an exponent across a quotient is forbidden, but it is allowable across products and sums, making ${\left(\frac{a}{b}\right)}^n$ generally undefined until simplified by expansion

Answer: (C)