Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Solve the equation
- $\sqrt[4]{t+4}=\sqrt[4]{9 t}$

A) $\left\{\frac{4}{9}\right\}$

B) $\{2\}$

C) $\left\{\frac{1}{2}\right\}$

D) $\varnothing$