Given the five lines of data: Write a SAS DATA step to read these data, assigning the four data values to the variables X, Y,C, and Z. Variable C should be a character variable. (Note that the value...

Given the five lines of data:

Write a SAS DATA step to read these data, assigning the four data values to the variables X, Y,C, and Z. Variable C should be a character variable. (Note that the value of variable C in the last line is nine characters.) The double quotes should be stripped off the text strings, and two adjacent commas should be interpreted as containing a missing value. Careful, line four has only three values on it. Remember the INFILE option to handle short lines.