The decision which does not incur any expenses is known as _________.

The correct answer is C. non-economic decision.

An economic decision is a decision that involves the allocation of scarce resources. A crisis decision is a decision that must be made quickly in response to a sudden and unexpected event. A problem decision is a decision that is made to solve a problem. A non-economic decision is a decision that does not involve the allocation of scarce resources.

Here are some examples of non-economic decisions:

• Deciding what to eat for dinner.
• Deciding what to wear to a party.
• Deciding what movie to watch.
• Deciding what book to read.

These decisions do not involve the allocation of scarce resources. They are simply decisions that people make on a daily basis.