The photograph below depicts an activity associated with the ... sector. ... percentage of the adult population in developed countries is involved in the tertiary sector which provides the largest contribution to the ...

The photograph shows individuals working in a laboratory setting, using microscopes and recording data, which indicates research and development.

Activities involving research, information processing, and specialized knowledge services are characteristic of the quaternary sector.

• The photograph below depicts an activity associated with the D quaternary sector.

2.1.4

In developed countries, a large percentage of the adult population is involved in the tertiary (services) sector. So, (i) is correct, and (ii) is incorrect.

The tertiary sector, being dominant in developed economies, provides the largest contribution to the country's gross domestic product (GDP). So, (iii) is correct, and (iv) is incorrect.

The correct combination is (i) and (iii).

• A large percentage of the adult population in developed countries is involved in the tertiary sector which provides the largest contribution to the gross domestic product.
• The correct option is A (i) and (iii).