The half-life of uranium-238 is 4.5 × 109 years. The half-life of uranium-234 is 2.5 × 105 years. How many times greater is the half life of uranium-238 than that of uranium 234.

Responses
A 2.7 × 10122.7 × 10 12
B 3.1 × 10-143.1 × 10 -14
C 1.8 × 10141.8 × 10 14
D 1.8 × 104