What is the topic of this text?

The text is about the introduction to Biochemistry, including its fundamentals, principles, and techniques used in research.
The text is about the extraordinary variety of living beings and their characteristics, such as birth, growth, reproduction, and death.
The text is about the composition of living beings, including the elements that are essential for their existence and the biomolecules that make them up.
a) Fundamentals of cell biology.
b) The extraordinary variety of living beings.
c) Introduction to Biochemistry.
d) The composition of living beings.