Critical reasoning — assumptions (implicit): Statement: "If you want to give any advertisement, give it in the newspaper X." — A tells B. Assumptions: I. B wants to publicise his products. II. Newspaper X has a wide circulation.

Introduction / Context:
A advises B to place any advertisement in newspaper X. To decide which assumptions are implicit, consider what must be true for this advice to be relevant and helpful to B's likely goal.

Given Data / Assumptions:

• A makes a specific media recommendation (newspaper X) for advertisements.
• Assumption I: B indeed aims to publicise products/services (i.e., needs advertising).
• Assumption II: Newspaper X has sufficient reach (wide circulation) to make advertising effective.

Concept / Approach:
Advice about where to advertise presupposes that advertising is B's intention (I) and that the recommended medium is effective (II). Without these, the suggestion lacks relevance or value.

Step-by-Step Solution:

Verification / Alternative check:
Negate I: B is not advertising anything → the suggestion becomes irrelevant. Negate II: X has poor reach → the advice would not be effective. The statement depends on both I and II.

Why Other Options Are Wrong:

• Only I/Only II/Either/Neither: Each drops a necessary condition for the advice to be useful.

Common Pitfalls:
Overlooking the two-part nature of practical advice: a goal implied in the listener and a claimed effectiveness of the recommended channel.

Final Answer:
Both I and II are implicit