Respuesta :
Use blue litmus paper. This is an indicator that can safely determine whether it is a base or an acid by changing color in response to the substance. This color indicates whether it is an acid or a base. Refer to the pH scale to see if the substance is basic or acidic.
Using a blue litmus paper will safely determine if a base is stronger than an acid.
What is a Litmus paper?
Thus is a type of paper which has tretrede with certain indicators and helps to differentiate between an acid or base.
An acid will turn blue litmus to red while a base will turn a red litmus paper into blue without physical contact of the solution thereby making option C the most appropriate choice.
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