Calculate the rate constant of a first order reaction if the half-life of the reaction is $40 \ minute$.
- A$1.733 \times 10^{-2} \ minute^{-1}$
- B$1.951 \times 10^{-2} \ minute^{-1}$
- C$1.423 \times 10^{-2} \ minute^{-1}$
- D$1.256 \times 10^{-2} \ minute^{-1}$
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