The Knights of Labor's 1885 strike against the Missouri Pacific Railroad was an overall success for the union because it

a. established trade unions

b. caused a boom in membership

c. eliminated the use of strikebreakers

d. opened up membership to immigrants

B. caused a boom in membership.

The Knights of Labor's 1885 strike against the Missouri Pacific Railroad was an overall success for the union because there was an increase in its Membership as it soared to 700,000 including 600,000 African Americans.

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

this is a good question! i'll do some research and come back when i have the answer!