Which DATA step below correctly references the macro variable site? The value of site is used to create the data set name Westprod and to select observations where the value of region is west.

	%let site=west; data &site.prod; set reg.productn; if region='&site'; run;
	%let site=west; data &site.prod; set reg.productn; if region="&site"; run;
	%let site=west; data &siteprod; set reg.productn; if region='&site'; run;