Answer: C. They were both colonized by Great Britain and gained independence in the 1960s.
Explanation: It doesn’t specify if they were both colonized by Great Britain, but it wouldn’t be D because Kenya rebelled. It wouldn’t be A because they didn’t form trade agreements and wouldn’t be B because Nigeria didn’t use violence. It would be C since the fact that they both gained independence in the 1960s is true according to the chart.