Inheritance of a acquired characters comes under

Options

A. Lamarckism
B. Darwinism
C. Neo-Lamarckism
D. Neo-Darwinism

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the concept of "inheritance of acquired characters." This refers to the idea that traits acquired during an organism's lifetime can be passed on to its offspring.

2. **Identifying Key Theories**: The question presents four options: Lamarckism, Darwinism, Neo-Lamarckism, and Neo-Darwinism. We need to determine which of these theories specifically addresses the inheritance of acquired traits.

3. **Exploring Lamarckism**: Lamarckism, proposed by Jean-Baptiste Lamarck, is the theory that organisms can pass on characteristics that they have acquired during their lifetime to their offspring. For example, if an organism develops a trait due to environmental changes, that trait can be inherited by its descendants.

4. **Examining Other Theories**:
- **Darwinism**: This theory, proposed by Charles Darwin, focuses on natural selection and does not support the idea of inheritance of acquired characteristics.
- **Neo-Lamarckism**: This is a modern interpretation of Lamarck's ideas but still fundamentally aligns with the concept of acquired traits being inherited.
- **Neo-Darwinism**: This theory combines Darwin's natural selection with Mendelian genetics and does not support the inheritance of acquired characteristics.

5. **Conclusion**: Based on the definitions and explanations of the theories, the correct answer to the question is **Lamarckism**, as it is the theory that specifically addresses the inheritance of acquired characters.

**Final Answer**: Lamarckism

---