&nbsp;&nbsp; &nbsp;What does the LEN function do in MS Excel-<br />
a)&nbsp;&nbsp; &nbsp;Deletes the extra space between words<br />
b)&nbsp;&nbsp; &nbsp;Adds the length of two cells<br />
c)&nbsp;&nbsp; &nbsp;Calculates the number of characters in a given text string<br />
d)&nbsp;&nbsp; &nbsp;Looks up whether a cell has text or number as content