Chapter 4, Problem 13PS

Which of the following statements will generate a random number in the range 30-50?

$\begin{array}{|l|}\hline \text{a}\text{. rand }\left(\text{33}\right)\hfill \\ \text{b}\text{. }\left(\text{rand }\left(\right)\%\text{ 20}\right)+\text{1}\hfill \\ \text{c}\text{. }\left(\text{rand }\left(\right)\%\text{ 21}\right)+\text{20}\hfill \\ \text{d}\text{. }\left(\text{rand }\left(\right)\%\text{ 21}\right)+\text{30}\hfill \\ \text{e}\text{. }\left(\text{rand }\left(\right)\%\text{ 51}\right)+\text{1}\hfill \\ \hline\end{array}$