Statements:\nI. Water has shape and volume.\nII. Knowledge is like water; it flows from one side to another.\n\nConclusions:\nI. Knowledge is interdisciplinary (it can flow across domains).\nII. Knowledge is bound within a specific area.\nIII. Knowledge directly influences the core of mental activity.

Introduction / Context:
Two analogical statements compare knowledge to water: water has definite physical properties, and knowledge, like water, flows from one side to another. The task is to determine which conclusions necessarily flow from this analogy.

Given Data / Assumptions:

• Analogy: knowledge behaves like water in its capacity to flow/move.
• Flow implies transfer, spread, and crossing boundaries.
• No direct statement about knowledge acting on the mind’s core in this item.

Concept / Approach:
Conclusion I captures the intended force of the flow metaphor: if knowledge can “flow,” it can traverse disciplines, contexts, or domains—i.e., it is interdisciplinary. Conclusion II contradicts the flow idea by asserting confinement to a specific area; hence it does not follow. Conclusion III introduces a new claim (direct influence on the core of mental activity) not provided by the premises; while plausible in general, it is not entailed by the analogy as stated here.

Step-by-Step Solution:
1) Interpret flow as transferability across boundaries.2) Therefore, interdisciplinarity (I) follows.3) Confinement (II) negates flow → reject.4) Influence on mental core (III) is not mentioned → reject.

Verification / Alternative check:
Consider knowledge that is siloed; that would contradict the comparison to water’s natural tendency to flow and take the shape of its container.

Why Other Options Are Wrong:
II conflicts with the premise; III lacks textual support in this specific item.

Common Pitfalls:
Reading additional educational psychology claims into a narrow analogy question.

Final Answer:
Only Conclusion I follows.