Statement–Assumption — Advertisement: “Use our product to improve your child’s memory. It is based on natural herbs and has no harmful side effects.” Assumptions: I. People prefer medical products that are useful and free from harmful side effects. II. Many parents consider improving a child’s memory to be important.

Introduction / Context:
The advertisement uses two appeal levers: effectiveness (improves memory) and safety (no harmful side effects; natural herbs). We must determine which audience beliefs are presupposed by this pitch.

Given Data / Assumptions:

• Parents make health and learning choices for children.
• Safety is a salient attribute for pediatric products.
• Academic performance and cognitive development are valued by many families.

Concept / Approach:
For the message to persuade, the advertiser relies on (a) consumers’ preference for safe, side-effect-free products (I), and (b) parental motivation to enhance children’s memory (II). Without I, the “no harmful side effects” claim carries no persuasive weight; without II, the core benefit (memory improvement) would not motivate purchase.

Step-by-Step Solution:
1) Assumption I is implicit: the ad foregrounds safety to align with consumer preferences.2) Assumption II is implicit: the value proposition targets an outcome (better memory) that parents desire for children.

Verification / Alternative check:
Health-product advertising consistently emphasizes efficacy plus safety precisely because audiences care about both.

Why Other Options Are Wrong:
Choosing only one assumption ignores the dual-appeal structure; “neither” rejects the obvious consumer psychology being leveraged.

Common Pitfalls:
Overlooking that ads make multiple simultaneous assumptions about consumer motives.

Final Answer:
if both I and II is implicit.