Which DATA step below executes the SYMPUT routine only when the last observation has been read from the data set?

	%let lib=master; data &lib..prod end=end; set &lib..newprod; if end then call symput('trial',test); run;
	%let lib=master; data &lib..prod; set &lib..newprod end=end; if end then call symput('trial',test); run;