A

\[\left\langle \frac{3}{4};1\right]\]

B

\[\left[ \frac{1}{4};1\right]\]

C

\[\left[\frac{1}{4}; \frac{3}{4} \right]\]

D

\[\left\langle\frac{1}{4};1 \right\rangle\]

E

\[\left\langle \frac{1}{2};1\right]\]