Ramesh played from 1430 hours to 1600 hours. For how long did he play?

Question

$\begin{array}{11} (a)\; \text{1.5 hours} \\ (b)\; \text{2 hours } \\ (c)\; \text{1 hour 15 min} \\ (d)\; \text{2.5 hours} \end{array}$