Step 1: Revisit the core statement.
The passage says:
- Impressions = vivid, direct, immediate experience.
- Ideas = weak copies of impressions.
Step 2: Check each statement.
-
I. Every impression leads to an idea. ✗
This is too extreme. Not every impression must lead to an idea. The passage only says ideas come from impressions, not that every impression must yield an idea.
-
II. Ideas must follow an antecedent impression. ✓
Correct, since ideas are weak copies of impressions, so impressions must precede ideas.
-
III. Colour of the test booklet is an impression; memory of a TV colour is an idea. ✓
This perfectly illustrates the difference between vivid experience (impression) and weak copy (idea).
-
IV. To know origin of an idea, we must study the impression behind it. ✓
Logically valid: since ideas derive from impressions, understanding impressions explains the origin of ideas.
Step 3: Conclude.
Statements II, III, and IV follow logically. Statement I is invalid due to its extreme nature.
\[
\boxed{\text{II, III & IV (D)}}
\]