One reason that northerners lost interest in Reconstruction was because "<span>A. Northerners were focused on the political corruption plaguing the nation," since this was during the Progressive Era. </span>
The kingdom went into decline from the mid-16th century CE when the Portuguese, put off by the interference of Kongo's regulations on trade, moved their interests further south to the region of Ndongo. The latter kingdom had already defeated a Kongo army in 1556 CE.
The correct answer for the question that is being presented above is this one: "paintings." The <span>kind of artwork were dutch merchants interested in are paintings. During t</span><span>he </span>Dutch Golden Age painting<span> is the painting of the </span>Dutch Golden Age, a period in Dutch in the 17th century. Paintings include <span><span>history painting, including allegories and popular religious subjects, etc.</span></span>