Select all the expressions that are equal to \(\frac{1}{2}\).

A. \(\frac{18}{20} - \frac{4}{10}\)

B. \(\frac{1}{8} + \frac{2}{3}\)

C. \(\frac{4}{12} + \frac{1}{6}\)

D. \(\frac{7}{8} - \frac{1}{4}\)

E. \(\frac{12}{15} - \frac{3}{5}\)