an effective claim in an argumentative essay tends to be nonspecific and undefined. is an idea that anyone…

Brief Explanations:

An effective claim in an argumentative essay should be clear - it gives the reader a specific point to focus on. A nonspecific and undefined claim is weak. A claim that anyone would support isn't really an argument as there's no debate. Just being passionate isn't enough; it needs to be well - structured.

Answer:

establishes a focus for the reader.