Differentiate (cos⁡3x)3x with respect to x.

• A. (cos⁡3x)x (3 log⁡(cos⁡3x) – 9x tan⁡3x)
• B. (cos⁡3x)3x (3 log⁡(cos⁡3x) + 9x tan⁡3x)
• C. (cos⁡3x)3x (3 log⁡(cos⁡3x) – 9x tan⁡3x)
• D. (cos⁡3x)3x (log⁡(cos⁡3x) + 9 tan⁡3x)