Which of the following is correct regarding $t_{1/2}$ of a reaction if we double the initial concentration of a reactant in a first-order reaction?
- A$t_{1/2}$ will increase by two times
- B$t_{1/2}$ will decrease by four times
- C$t_{1/2}$ remains the same
- D$t_{1/2}$ will decrease by two times
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