How is it possible for carbon to move through the biotic parts of carbon cycle

Explanation:

Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too. Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground.

Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too. Carbon moves from plants and animals to soils.

Explanation:

Carbon enters the biotic (living) part of the ecosystem through photosynthesis. Plants of the forests take the carbon in carbon dioxide and fix it in organic compound such as sugar, starch, cellulose and other carbohydrates. Respiration in plants returns carbon dioxide to the atmosphere.

a is the correct answer