The plan to upgrade the dispensary to a general hospital did not materialized?

Analyze the question: The sentence says the plan to upgrade a dispensary to a general hospital "did not materialize." We need the option that best explains this meaning.

Explain the concept: To materialize means to become real, to actually happen, or to come into being. When a plan "does not materialize," it means it was never carried out or never came to fruition. It does not tell us why. It only tells us the plan did not happen as intended.

(Note: the sentence has small errors. It should read "did not materialize." with a full stop, not a question mark.)

Step-by-step solution:

• A. The plan did not meet the required specifications. This invents a reason (specifications) that the sentence never mentions. ✗
• B. The arrangement did not work out as wished. This matches the meaning: the plan did not come to reality as hoped. ✓
• C. It was difficult to obtain the materials. This confuses "materialize" with "materials." It is a trap based on similar-looking words. ✗
• D. The materials purchased were not the right ones. This is the same trap. ✗

Answer: The correct option is B.

Tip: In "best explains the sentence" questions, watch for distractors that reuse a similar-looking word, like "materials" for "materialize." Focus on the actual meaning of the key word, and avoid options that add details not found in the sentence.