Answer:
B. Between groups design
Explanation:
Between groups design: In psychological research, the term between groups design is defined as an experiment or research that consists of two or more than two groups of participants or subjects and each of them is being tested or measured through a different measuring or testing factors at the same time. In the between-groups design, each person is being exposed to a single or particular user interface.
In the question above, the given statement is an example of a between-groups design.
World war 2 is the answer
Risk management.
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"The Senate of the Roman Republic was a political institution in the ancient Roman Republic. It was not an elected body, but one whose members were appointed by the consuls, and later by the censors. After a Roman magistrate served his term in office, it usually was followed with automatic appointment to the Senate." -Wikipedia
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