Complete the following reaction sequence,giving structures for compounds A and B: 
Definitions:
Darwin's Theory
A scientific theory of biological evolution that explains how species evolve over time through natural selection.
Memes
Cultural elements or concepts that are transmitted by repetition and imitation from one mind to another through writing, speech, gestures, rituals, or other imitable phenomena.
Alex Mesoudi
A researcher known for his work in cultural evolution, studying how cultural traits evolve and spread across generations.
Evolutionary Framework
An evolutionary framework is a conceptual structure that uses principles of evolution to understand the development of complex systems, including biological organisms and human societies.
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