Use the map below to answer the following question: The map shows which areas of India were controlled by Britain at different dates. In 1765, British control was limited to the Bengal and Behar areas in the northeast and to a strip of the east central coast, including the city of Calcutta. In 1805, that territory had expanded to include the entire east coast, including the cities of Madras and Pondicherry, the so-called Northwest Provinces, really north central, including the city of Delhi, and the perimeter of the island of Ceylon. In 1858, British rule included virtually all of India, having expanded throughout western India, and including the cities of Bombay and Goa; the interior of Ceylon; and the provinces of Kashmir and Punjab to the north and Assam and Arakan to the east. All the named cities are coastal ports except for Delhi, which is in the interior. The map also shows the main area that was affected by the Sepoy Rebellion, a jagged area in the center of India including Delhi, and a spur to the northwest into the Punjab.
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What can be correctly inferred from the information on the map?

Delhi was the capital city of a unified India in 1857.
India was the "jewel in the crown" of the British Empire.
Great Britain's main motives for imperialism in India were commercial.
The Sepoy Rebellion was a major but unsuccessful threat to British rule.