SubArea: Logarithmic FunctionsLevel: AProject ID: 2000000605Accepted: 0Clonable: 0Easy: 1Which of the following sets is the domain of the function \(f: y=\log(x^2+9)\)?\( \mathbb{R}\)\( (-\infty,-3) \cup (3,+\infty)\)\( (-3,3)\)\( \mathbb{R} \setminus \{-3,3\}\)