Which of the Following Is True for a Normal Distribution

Short Answer

Which of the following is true for a normal distribution? $\begin{array}{|l|l|}\hline A&\text {It is unimodal. }\\\hline B&\text {It is symmetrical. }\\\hline C&\text {It has a bell shape. }\\\hline D&\text {All of these choices are correct. }\\\hline \end{array}$