Days after japan attacked pearl harbor, president franklin d. roosevelt addressed congress, asking for a declaration of war. what is the purpose of repetition in this excerpt from his speech?

to emphasize that the Japanese attack was deliberate and treacherous

i am also pretty sure it is c

a constant variable, normally called a controlled variable, is the term for a variable that remains constant throughout an experiment, though other variables may change. an example is the water pressure for a faucet when measuring the amount of water released when the faucet is opened to various increments.