@preetimangtani wrote: If you visit this site: http://support.sas.com/documentation/cdl/en/proc/70377/HTML/default/viewer.htm#n1h2bc0rkcufgwn11accg1uiksto.htm   It says,   Print the data set EXPREV. EXPREV contains information about a company's product order type and price per unit for two months. DOUBLE inserts a blank line between observations. The DOUBLE option has no effect on the HTML output. proc print data = exprev double;   Does this not mean that the answer should actually be double and not put?        The DOUBLE keyword in the article you linked to is an option on the PROC PRINT statement and not a stand alone statement like in the choices listed in the original problem. ... View more