In a college of 300 students every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspaper is

Question

$\begin {array} {1 1} (A)\;atleast \: 30 & \quad (B)\;at\: most\: 20 \\ (C)\;exactly \: 25 & \quad (D)\;none\: of\: these \end {array}$