If \(\frac{a}{c}\) = \(\frac{c}{d}\) = k, find the value of \(\frac{3a^2 - ac + c^2}{3b^2 - bd + d^2}\)

• A.3k²
• B.2k - k²
• C.\(\frac{3b^2k^2 - bk^2d + dk^2}{3b^2 - bd + d^2}\)
• D.k²
• E.