How many patents for new tech inventions (lightbulb, telephone) were given out in the 2nd industrial revolution?

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. 

a. favoring native born americans over immigrants.

i think it is the first one hope this