A sentence is presented below with three words highlighted in bold. Select the option that provides the correct order of these words to ensure the sentence is grammatically sound and contextually appropriate.

The metropolitan authority's buses (A) to deploy (B) electric double-decker initiative (C) has begun to yield results.

The correct option is CBA.

Step-by-step Explanation:

Let's analyze the highlighted words in the given sentence to determine their correct positions for grammatical correctness and logical flow:

1. Original Sentence:
"The metropolitan authority's buses (A) to deploy (B) electric double-decker initiative (C) has begun to yield results."

2. Analyzing Position (A):
The sentence begins with "The metropolitan authority's...". The possessive noun requires a head noun describing an action, project, or plan. Using "buses" here makes the singular verb "has begun" grammatically incorrect ("buses... has begun" is subject-verb agreement error). Instead, the noun initiative (C) fits perfectly here, making the phrase "The metropolitan authority's initiative... has begun".

3. Analyzing Position (B):
After "initiative to", an infinitive verb is needed to explain the purpose of the initiative. The verb deploy (B) fits naturally: "initiative to deploy...". Thus, word B stays in its position.

4. Analyzing Position (C):
The verb "deploy" requires a direct object describing what is being deployed. The noun buses (A) fits contextually with the modifiers "electric double-decker": "...electric double-decker buses (A)".

5. Reconstructed Sentence:
"The metropolitan authority's initiative (C) to deploy (B) electric double-decker buses (A) has begun to yield results."

Therefore, the correct sequence of the original labels to make the sentence contextually and grammatically correct is CBA.