Using the SQL GROUP BY phrase with a SELECT statement can help detect which of the following problems?

Needing to using more complicated SQL in database applications is a(n) ________ of normalization.

A. advantage

B. disadvantage

C. either an advantage or disadvantage

D. neither an advantage nor disadvantage

Eliminating modification anomalies is a(n) ________ of normalization.

A. advantage

B. disadvantage

C. either an advantage or disadvantage

D. neither an advantage nor disadvantage

Multivalued dependencies should ________ be eliminated.

A. always

B. commonly

C. seldom

D. never

When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:

A. first step.

B. second step.

C. third step.

D. fourth step.