Which of the following will NOT bring about an increase in Labour force?

Analyze the question: We need the factor that does NOT increase the labour force (the working-age population available for work) of a country.

Concept: The labour force depends on the size of the working-age population. It rises when:

• more people are born (after they reach working age),
• people live longer or healthier lives (lower death rate, better health care),
• people move into the country (immigration).

It falls when people leave the country (emigration).

Step-by-step check of each option:

• A. Better medical services: People stay healthier and live longer, so more people remain in the working population. This increases the labour force.
• B. Decrease in death rate: More people survive into working age, so the labour force increases.
• C. Emigration: Workers leave the country to live elsewhere, so the labour force shrinks. This does NOT increase it.
• D. Immigration: People enter the country and add to the working population. This increases the labour force.
• E. Increase in birth rate: More births mean more people who will eventually reach working age. This increases the labour force in the long run.

Answer: The only option that reduces the labour force is emigration, so the correct answer is C.

Tip: Remember "Immigration = In, Emigration = Exit." Anything that adds people (births, longer life, people coming in) raises the labour force. Anything that removes people (death, leaving the country) lowers it.