What is one if the defining characteristic of the modern era

Economies around the world have become more interconnected because of globalization.

Explanation:

In the modern era, the globalization took a massive swing worldwide, and most of the countries became much more connected with each other through the means of economy. The main players of the globalization process are the big corporations which set affiliations throughout the world, and managed to gain many new markets for their ever growing production of goods. Apart from the likes of North Korea, Iran, Turkmenistan, and countries similar to them, most of the world is already or is heading towards the globalization trend. It is a process that has its supporters and critics, depending on the point of view, and to a certain extent both sides have good arguments for their claims.

first option i assume

explanation: