The sum of series 0.7 + 0.77 + 0.777 + ...... up to 25 terms is:

• A. \(\dfrac{7}{81}\left[250+\dfrac{1}{10^{25}}\right]\)
• B. \(\dfrac{7}{81}\left[225+\dfrac{1}{10^{25}}\right]\)
• C. \(\dfrac{7}{81}\left[223+\dfrac{1}{10^{25}}\right]\)
• D. \(\dfrac{7}{9}\left[224+\dfrac{1}{10^{25}}\right]\)