Darwin is the author of

Options

A. Genera plantarum
B. Origin of species
C. Natural selection
D. Theory of evolution

Answer

### Step-by-Step Solution:

1. **Identify the Author**: The question asks for the works authored by Charles Darwin. It is important to recognize who Darwin is and his contributions to biology.

2. **Review Darwin's Major Works**: Darwin is known for several significant publications. The most notable among them include:
- "On the Origin of Species" (1859)
- "The Descent of Man" (1871)
- "The Expression of the Emotions in Man and Animals" (1872)

3. **Focus on Key Concepts**: Darwin is primarily known for his theory of natural selection, which is a fundamental concept in evolutionary biology. This theory explains how species evolve over time through the process of natural selection.

4. **Determine the Correct Answer**: Among the options provided (Genera Platinum, Origin of Species, Natural Selection, Theory of Evolution), the most accurate answer is "Origin of Species," as it is the title of his most famous work that outlines his theory of evolution through natural selection.

5. **Conclusion**: Therefore, the correct answer to the question is "Origin of Species."

### Final Answer:
Darwin is the author of "On the Origin of Species."

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