\[\frac{2}{27}\,+\,\frac{4}{27}\,+\,\frac{6}{27}\,=\,\]

• A. \[\frac{4}{5}\]
• B. \[\frac{4}{9}\]
• C. \[\frac{5}{21}\]
• D. \[\frac{6}{7}\]
• E. None of these