Which of These Did Physicians Attribute to the Cause and Spread

question 100

Multiple Choice

Which of these did physicians attribute to the cause and spread of epidemic diseases in the mid-nineteenth century?

• A) Intercontinental travel.
• B) Gases that arose from rotten vegetables or dead animals.
• C) Bacteria.
• D) Sinfulness.
• E) All of these choices

---

Definitions:

Marginal Decision Rule

The principle of making decisions based on the additional cost vs. additional benefit of the next unit.

MC < MR

This indicates a scenario in economic theory where the marginal cost of producing an additional unit is less than the marginal revenue gained from selling that unit.

Monopolistic Competition

A market structure characterized by many firms selling similar but not identical products, allowing for some degree of market power and product differentiation.

Monopolistic Competition

An industry setup where numerous companies offer products that are alike but not exactly the same, providing a certain level of influence over the market.