Select ALL true statements regarding quality systems.

Question $1$Select one or more:

a$.$

If an analytical test exists for each attribute of the final drug product, QC testing alone can be used to ensure quality product.

b$.$

Management responsibilities within the Quality System are listed in a company's "Management Manual".

c$.$

Standard Operating Procedures are part of the Quality System.

d$.$

The Management System is the heart of the Quality System.

e$.$

ICH Q$10$ includes guidance on quality for drug development.

f$.$

When the FDA writes a Warning Letter and lists GMP infractions at a manufacturing facility, it addresses the letter to the company president.

g$.$

The FDA's Center for Drug Evaluation and Research coined the term "Quality System".