Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: An organism is a living thing. Given the two facts above, what makes up the basic structure and function of all organisms found on Earth?

OPT:
[1]. organs.
[2]. cells.
[3]. plants.
[4]. fungi.
[5]. bone structure.
[6]. trees.
[7]. Earth molecules.
[8]. Fat.
The answer is:
[2].