why two keywords in c#: String and string
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/215255/string-vs-string-in-c">String vs string in C#</a>  </p>
</blockquote>



<p>I see there are 2 different keywords (classes ?) one which starts with capital S and other with small in c#.</p>

<p>String and string</p>

<p>What is the reason ? is one not sufficient ?</p>
