Find the Intensity I of an Earthquake Measuring R on the Richter

Multiple Choice

Find the intensity I of an earthquake measuring R on the Richter scale $\text { (let } I _ { 0 } = 1 \text { ) }$ .
Costa Rica in 2009, $R = 5.70$

A) $10 ^ { 5.70 } \approx 503,187$
B) $10 ^ { 5.70 } \approx 501,187$
C) $10 ^ { 5.70 } \approx 506,187$
D) $10 ^ { 5.70 } \approx 496,187$
E) $10 ^ { 5.70 } \approx 499,187$