Mumbai is the most populous city in India. It has 20 million residents.
Which choice most effectively combines the two sentences?
Mumbai is the most populous city in India with 20 million residents.
The most populous city in India is Mumbai; Mumbai has 20 million residents.
In Mumbai, there are 20 million residents, which makes it the most populous city in India.
India's most populous city is Mumbai because it has 20 million residents.
Correct Answer: A
Choice A is the best answer. It combines the population statistic into a prepositional phrase ("with 20 million residents") that modifies the city name and description efficiently.
Choice B is incorrect because the semicolon connects two independent clauses without improving conciseness. Choice C is incorrect because "In Mumbai, there are..." is wordy. Choice D is incorrect because "because it has" implies a causal link that is slightly awkward.