Read the given passage and answer the question that follows.While some herbal remedies may have proven health benefits, not all herbs are safe. It's important to research and consult with a healthcare professional before using any herbal concoction. While we may use some herbs for minor ailments, such as a cold or headache, others may treat more serious conditions, such as cancer or heart disease. Not all herbal concoctions are natural and organic. Some may contain synthetic ingredients or preservatives, so it's important to read labels and research before using these concoctions. While herbal remedies may have some health benefits, they should not be used as a substitute for traditional medicine.Select the most appropriate ANTONYM of the given word in the context of the passage.Substitute

In the given context, "Substitute" refers to a person or thing acting or serving in place of another (a replacement or proxy alternative). Synonyms or closely related words include Equivalent, Surrogate, and Rival.Let's check the options to find an antonym or the word least related to replacing/substituting:Perdurable: Lasting a very long time; imperishable or enduring. This refers to permanence, which acts as a conceptual opposite to something that is temporary or used merely as a temporary alternate/substitute.Equivalent: Equal in value, amount, function, or meaning (Synonym/Similar).Rival: A person or thing competing with another for the same objective or position (Similar).Surrogate: A substitute, especially a person deputizing for another in a specific role (Synonym).Therefore, Perdurable is the most distinct/opposite choice among the provided options in this conceptual vocabulary space.