5. proc sql; create table c as select one.*, two.* from one left join two on one.a=two.a; run; What is the size of table three? A. 2 columns and 6 rows B. 3 columns and 6 rows C. 3 columns and 3 rows D. 3 columns and 5 rows 6. Recall two tables in question 5 . Run following code: data four; merge one (in=one_o) two (in=two_t); by a; if (one_o and not two_t) or (two_t and not one_o); run; How many observations will be in dataset four? A. 0 B. 3 C. 5 Recall table one in question 5. Which TABLES statement was used to complete the following program that produced the output? proc freq data = one; run; A. tables a d; B. tables a, d; C. tables aba*d; D. tables a d; 8. Recall table two in question 5 . Which statement generates the summary table above? A. proc means data=two n mean max min range std; var a d; title 'Summary of Presentation and Taste Scores'; run; B. proc summary data=two n mean max min range std maxdec=2; var a d; title 'Summary of Presentation and Taste Scores'; run; C. proc means data=two n mean max min range std maxdec =2; var a d; title 'Summary of Presentation and Taste Scores'; run; D. proc means data=two/all maxdec=2; var a d; title 'Summary of Presentation and Taste Scores'; run