Answer:
The answer is C.
Step-by-step explanation:
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In this case, since the ionization of HCl to H+ and Cl- ions decrease the pH of a solution as it gets more acidic due to the H+ ions; it is possible to infer that the presence of Cl- ions in the solution does not modify the pH of the solution because it is not able to react with water to form HCl and then undergo the aforementioned reaction because HCl is a strong acid so the ions are not able to undergo the reverse ionization.
In such a way, the answer will be C.
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