This is billy bob tanley here people

B) the length of the text.

Explanation: When evaluating an argument, the least important aspect to examine is the length of the text, this is because there is no evidence of whether an argument should be short of long in order to be effective. The other given aspects, like consistency and clarity of the message, the reader's capacity to feel and see what the writer feels and sees and the credibility of the writer are more important aspects.