A and B. Indexes are of significance only to data retrieval, and primary keys merely identify rows.
A2:
A and D. Many databases (especially nonclient/server databases) do not support the use of stored procedures, and stored procedures are fully supported in ColdFusion.
A3:
A, B, and C. SELECT does not change data and therefore does not support the use of triggers.
A4:
A. The use of stored procedures helps because they prevent users from passing explicit SQL code to be executed.
