I think the answer is D. England and France.
The "Red Shirts" are mostly associated with the period that followed after the Reconstruction era of the United States of America. Although they were present from the year 1875 but they became most active after the Reconstruction era. So it can be said that during the late 19th century the "Red Shirts" were most active.
1:
The "Anti Mask meeting" part because its dipicting its during the time of Late 2019-2021 were we have a mask ordinace thats according this "Unhealthy"
2:
"Anti mask meeting" by it self because it also is telling you that its meant for people who already wear masks and disagree on it.
3: "to protest against" and "Anti mask meeting" dipict that the purpose is to talk and protest against the mask mandate we have in multiple areas.
4:
The point of view of the creator is that the gathering is to protest against the wrongdoings of the mask madate examplifying the creator agrees with the people meeting and seems to intend to join them. Considering he calls the speakers "interesting" which is an opinon he gladly shared which only people do when they truely feel this way, and based on the way it was said it was a good verison of interesting. There for repersenting that he agrees and likes the idea of the meeting.
