What's the Open Door Policy the United States purposed?

From which of the following literary works is this quotation most likely taken?

He table below shows the number of immigrants to the united states from different regions of europe between 1871 and 1910

Gretchen opens a high-end bakery in a busy section of town. customers pay top dollar for her quality baked goods. just two months later, emily opens a bakery across the street. she also sells baked goods but uses lower- quality ingredients and has a less appealing shop. some of gretchen's customers take their business to emily's bakery because her prices are lower. which industrial revolution-era system or movement is reflected in this scenario? o a. romanticism o b. marxism o c. social criticism o d. capitalism