According to the textbook, economic integration has progressed at a faster pace than economic integration.

C). regional; global

Explanation:

Regional economic integration is characterized as the consensus/cooperation between various groups of countries in a particular region(geographic) for the reduction and eventual withdrawal of tariff or non-tariff obstructions for ensuring the unrestrained flow of goods and services along with distinct factors of production among each other. While global economic integration is a similar arrangement between the nations for the reduction in the tariff barriers and the association of various policies. The former has advanced at a higher pace in comparison to the latter as it has assisted in centering upon the issue and helped the smaller economies to grow at a higher growth rate. Thus, option C is the correct answer.

24 years, i believe is the correct answer.