Answer :
The process i.e. used for distinct the chemicals from blood or urine sample should be option b. chromatography
What is chromatography?
Chromatography refers to the process where the component of the mixture should be distinct. For get the beginning of the process, the mixture should be dissolved in the substance that we known as the mobile phase that carries via the second substance known as the stationary phase.
In the case when the athletes should tested the usage of the illegal drugs so for separating out the chemicals, the chromotography should be used.
Therefore, the option b is correct.
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