The contents of two SAS data sets named EMPLOYEE and SALARY are listed below:
EMPLOYEE SALARY
name age name salary
Bruce 30 Bruce 40000
Dan 35 Bruce 35000
Dan 37000
Dan .
The following SAS program is submitted:
data work.empsalary;
merge work.employee (in = inemp)
work.salary (in = insal);
by name;
if inemp and insal;
run;
How many observations will the data set WORK.EMPSALARY contain?
A. 2
B. 4
C. 5
D. 6
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