Which statement about the general real solution is true?

Which statement about the general real solution is true?

• A. It can be written as y = x [ C1 cos(ln x) + C2 sin(ln x) ]
• B. It can be written as y = x^{-1} [ C1 cosh(ln x) + C2 sinh(ln x) ]
• C. It is purely exponential in x
• D. It can be written as y = x^{-1} [ C1 cos(ln x) + C2 sin(ln x) ]

Answer: (D)