Which of the following is equivalent

Question

Answer 1

I suggest first evaluating the expressions with parentheses, then multiply them.

(a³b⁴)^-3 = a^-9b^-12 = 1 / (a⁹b¹²)

(a^-3b^-5)^-4 = a¹²b²⁰

Now multiply these two.

a¹²b²⁰ / (a⁹b¹²) = a^12-9b^20-12 = a³b⁸

I do not see this result among the choices. Could there be a typo in uploading the problem?