Section: Writing and Language

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Select the answer that rewrites the following passage in paragraph 2 in a more coherent, concise form. 

In 1927, the naturalist Reginald Innes Pocock declared it a separate species, but reversed this decision in 1939 due to lack of evidence; but in 1928, a skin purchased by Walter Rothschild was found to be intermediate in pattern between the king cheetah and spotted cheetah and Abel Chapman considered it to be a color form of the spotted cheetah.

1. In 1927, the naturalist Reginald Innes Pocock declared it a separate species. He reversed this decision in 1939 due to lack of evidence, But in 1928, a skin purchased by Walter Rothschild was found to be intermediate in pattern between the king cheetah and spotted cheetah and Abel Chapman considered it to be a color form of the spotted cheetah.
2. In 1927, the naturalist Reginald Innes Pocock declared it a separate species. He reversed this decision in 1939 due to lack of evidence. In 1928, a skin purchased by Walter Rothschild was found to be intermediate in pattern between the king cheetah and spotted cheetah. Abel Chapman considered it to be a color form of the spotted cheetah.
3. In 1927, the naturalist Reginald Innes Pocock declared it a separate species, but reversed this decision in 1939 due to lack of evidence. In 1928, a skin purchased by Walter Rothschild was found to be intermediate in pattern between the king cheetah and spotted cheetah. And Abel Chapman considered it to be a color form of the spotted cheetah.
4. In 1927, the naturalist Reginald Innes Pocock declared it a separate species, but reversed this decision in 1939 due to lack of evidence. But in 1928, a skin purchased by Walter Rothschild was found to be intermediate in pattern between the king cheetah and spotted cheetah. Abel Chapman considered it to be a color form of the spotted cheetah.

Answer 2: this is correct because it breaks the passage down into easy-to-read, grammatically correct sentences.