The author uses the metaphor of doors to symbolize A) the east and west coasts of America. B) the attitude people have about California. C) the process of people fleeing persecution. D) the age of exploration and discovery of the New World.

(D) the age of exploration and discovery of the New World.

Explanation:

The Age of Discovery or Age of Exploration was a period from the early 15th century that continued into the early 17th century, during which European ships traveled around the world to search for new trading routes and partners. They were in search of trading goods such as gold, silver and spices.

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.