Latex enumerate

To itemize some texts in latex, there are several ways.

1) use the circle point:
\begin{itemize}
\item texts
\end{itemize}

2) for more options, use the package enumerate.

\usepackage{enumerate}
% for example
\begin{enumerate}[argument] :
% if argument is A : \item produces A. B.....
% if argument is a : \item produces a. b.
% if argument is I : \item produces I, II, IIi
% if argument is i : \item produces i, ii, iii..
% if argument is 1: \item produces 1, 2, 3
% if argument is is EX i : \item produces EX i., EX ii,
% if argument is {A}-I \item produces A-I, A-II,...
\end{enumerate}