If this is the full question " <span>Which of the following formulas is equivalent to =SUM(A1:A3)?
A. =A1+A3
B. =A1+A2+A3
B. =A2
D. =A3-A1"
The answer is </span>
<span>B. =A1+A2+A3 formulas is equivalent to =SUM(A1:A3)</span>
I am not sure but here is a guess I think it might be C- earth's magnetic field reverses
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