Which two statements are true about the results of using the INTERSECT operator in compound queries? (Choose two.) 

Answer options:

A. Column names in each SELECT in the compound query can be different
B. The number of columns in each SELECT in the compound query can be different
C. Reversing the order of the intersected tables can sometimes affect the output
D. INTERSECT returns rows common to both sides of the compound query
E. INTERSECT ignores NULLs

AE