Argument — “This book can help because all good books help.”\nQuestion — Which conclusion follows most directly?

Introduction / Context:
The sentence is an argument that cites a universal generalization (“all good books help”) to justify a particular claim about “this book” (“can help”). The warrant works only if “this book” is treated as a member of the class “good books.”

Logical Reading:

• General rule: If something is a good book, then it helps.
• Claim about this item: “This book can help because all good books help.”
• Implied bridge: “This book is a good book.”

Conclusion Mapping:

• II (“This is a good book”) — is the tacit premise being appealed to; adopting it makes the inference valid.
• IV (“Some good books help”) — while likely true, the stem’s reasoning is not about existence but about categorizing this specific book using a universal rule.
• I (“This is not a good book”) and III (“No good book help”) contradict the stated universal and the use of it as support.

Final Answer:
Conclusions II