Select the most appropriate option with correct usage of the preposition to substitute the underlined segment in the given sentence.
The Centre of Excellence for Data Analytics (CEDA) provides quality data analytic services to various government departments on all levels as well as to public sector units at the Centre and in states.
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Correct answer: D
Explanation
The correct answer is option 4 i.e. various government departments at all levels
"Various government departments at all levels" is a suitable option.
At" is used to indicate a specific point or place, in this case, levels of government. It correctly conveys that services are provided to departments across all levels e.g., local, state, and national.