Solve the problem.Scientists compare intensity levels of two sounds by taking their difference: 
Write the expression on the right side as the logarithm of a single quantity.
A. log (I1I2/Io2)10
B. log (I2/I1)10
C. log (I2-I1)10
D. log (I1/I2)10
Answer: B
Mathematics
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D. 
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