The answer is C. There was concern that U.S. citizens' privacy was being violated.
The answer would be d all the the above
Henry Morton Stanley was working with King Leopold ll of Belgium to colonize Congo
In 1900, the average salary of an American worker was $449.80 per year. However, unspecialized women made about 120 per year, black men weighed in at about 150, and black launderers at about 180. So, uh, that wage average is very heavily raised by the earnings of white men, but it's a census average regardless.