Question 26612
We can go down the list and eliminate the erroneous answer.

A) "Any real number (besides zero) raised to the zero power equals 1."

So {{{b^0=1}}} is correct.

B) {{{1/b^n = b^(-n)}}} This is correct.

C) The "Product of powers" rule states: {{{(a^m)(a^n) = a^(m+n)}}}
So {{{(b^m)(b^n) = b^mn}}} is incorrect!

D) The "power of quotients" rule states that: {{{(a/b)^m = (a^m)/(b^m)}}}
So {{{(a^n)/(b^n) = (a/b)^n}}} is correct.