Which of the following factors have played an important role in decline in death rate rapidly throughout the world?

Revolution in Medical field

The correct answer is Option 2: Revolution in Medical field

The rapid decline in death rates throughout the world has mainly been due to advancements in the medical field such as:

• Development of vaccines and antibiotics,
• Improved healthcare facilities,
• Better disease control, and
• Improved sanitation and medical technology.

Big hospital chains and insurance schemes may contribute to healthcare access, but the major global factor responsible for the sharp decline in death rates is the revolution in the medical field.