Complete the second pair in the same way as the first pair. \[\frac{8}{12}:\frac{2}{3}::\frac{15}{25}:?\]

• A.   \[\frac{3}{10}\]         
• B.   \[\frac{3}{5}\]
• C.   \[\frac{4}{8}\]         
• D.   \[\frac{6}{8}\]