$2.$ Professional judgment is a widely used concept in accounting and auditing. How is it defined in the audit standards?

a$.$ There is no definition of professional judgment in the auditing standards.

b$.$ Professional judgment includes consideration of key principles and concepts of disciplines underlying the professional standards, such as economics, psychology, law, finance, statistics and philosophy.

c$.$ Professional judgment means reaching a complex decision by incorporating auditing standards, accounting standards, and rules of professional ethics in a coherent manner.

d$.$ Professional judgment involves specialized concepts and language integrating several disciplines in order to provide appropriate justification for audit decisions.