To Improve Reading Skills, Elementary School Children Read Silently at the End

To improve reading skills, elementary school children read silently at the end of the school day  for $\frac { 3 } { 4 }$  of an hour on Mondays and for $\frac { 1 } { 8 }$  of an hour on Fridays. For the month of January, how many hours did the children read silently in class? Use the calendar for help. $\begin{array} { | l | l | l | l | l | l | l | } \hline \mathbf { S } & \mathbf { M } & \mathbf { T } & \mathbf { W } & \mathbf { T } & \mathbf { F } & \mathbf { S } \\\hline & 1 & 2 & 3 & 4 & 5 & 6 \\\hline 7 & 8 & 9 & 10 & 11 & 12 & 13 \\\hline 14 & 15 & 16 & 17 & 18 & 19 & 20 \\\hline 21 & 22 & 23 & 24 & 25 & 26 & 27 \\\hline 28 & 29 & 30 & 31 & & & \\\hline\end{array}$

A) $4 \frac { 1 } { 4 }$  hours
B) $9 \frac { 1 } { 8 }$  hours
C) $4 \frac { 1 } { 8 }$  hours
D) $8 \frac { 1 } { 2 }$  hours
E) $40 \frac { 1 } { 4 }$  hours