Which of the following is true regarding the solutions to the logarithmic equation below?

2 log Subscript 3 Baseline (x) = 4. log Subscript 3 Baseline (x squared) = 4. x squared = 3 Superscript 4. x squared = 81. x = 9, negative 9

x = 9 and x = negative 9 are true solutions
x = 9 and x = negative 9 are extraneous solutions
x = 9 is an extraneous solution and x = negative 9 is a true solution
x = 9 is a true solution and x = negative 9 is an extraneous solution