Answer:
B. Number and complexity of trade agreements
Explanation:
The measure to the degree of the globalization and the international economic integration is concerned with the discriminatory practice of the removal of the all the trade that is made between the party of nations and to establish a certain element of the corporation and coordination between them.
And this can be seen as the number of the trade agreements and the trade complexity and thus is a measure that economists use to examine the degree of the globalization.