Required event = c
no of required event = 177
Total number of events = 180 + 212+ 177 + 140 + 152+ 139 = 1000
[tex]\begin{gathered} \text{The probability of c = }\frac{177}{1000}=0.177 \\ \text{In percentage it will be} \\ 0.177\text{ }\times100\text{ =17.7 \%} \end{gathered}[/tex]Option D