1. the following SAS program is submitted

data work.test;

 First='Ipswich, England';

 City_Country=substr(First,1,7)!!','!!'England';

run;

which one of the following is the length of the variable City_Country in the output data set?

A. 6 B. 7 C. 17 D. 25

2. The following SAS program is submitted:

data work.test;

 Title='A Tale of two cities, Charles J.Dickens';

 Word=scan(title,3,',');

run;

Which one of the following nisthe value of the variable WORD in the output data set?

A. T B. of C. Dickens D.' ' (missing character value)

多谢！