Robert says the product of 5•(-8). 2 is 80. What was his likely error? Choose the answer that gives the error.
O A. The sign of Robert's answer is torrect, but he multiplied the first two factors incorrectly.
OB. Robert's answer is correct except for the sign. He forgot to consider the signs of 5 and 2.
OC. The sign of Robert's answer is correct, but he multiplied the product of the first two factors and
the last factor incorrectly.
OD. Robert's answer is correct except for the sign. He forgot to consider the sign of -8.
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