_____________ Is (Are) the Key Factor in Explaining the Decline

question 1

Multiple Choice

_____________ is (are) the key factor in explaining the decline in death rates in the U.S. in the late 19^th and early 20^th century.

• A) Improved sanitation
• B) Improved medical treatments
• C) Urbanization
• D) A more varied and nutritious diet

---

Definitions:

Direct Contribution

The direct financial impact of a specific activity or unit towards the overall profit or revenue of a business.

Line Managers

Managers who have direct responsibility for managing employees and operations, acting as a link between higher management and the workforce.

Technical Expertise

Specialized knowledge or skills in a particular area of technology or science.

Line Workers

Employees who are directly involved in the production process of a factory or in the operation of a service company.