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Rodger made a model to see if 16 is an even number. He used his buttons to make his model. When he was finished laying out the buttons, what did he discover?
A. He discovered that 16 is an even number because he made 2 groups, one with 1 button and one with 8.
B. He discovered that 16 is an even number because she made exactly 8 pairs of buttons.
C. He discovered 16 is an odd number becasue he made 8 pair of buttons and had one extra
D. She discovered 16 is an odd number because he made two groups of 8 buttons.
B. He discovered that 16 is an even number because she made exactly 8 pairs of buttons.