State whether the passage is an argument or non-argument

Please provide answers in one's forum post to the following exercises from Chapter 1.2 , Exercise I, pp. 25-29:  # 3, 15, 26.  State whether the passage is an argument or non-argument; list any logical indicators present in the passage (if any); state whether you used the Logical Indicator Method or the Inference Test or both; briefly state why you think the passage is an argument or non-argument, including what kind of non-argument (if it is a non-argument), which statement is the conclusion.  Please write in complete sentences.