5 Select the correct answer. Salim wants to convert his garden into an eco-friendly form by using organic matter and leftover food. Which method can he use? A, biological action B. composting C. incineration D, carbon sequesiration

\[ \textbf{Step 1: Understand the problem.} \] Salim wants to use organic matter and leftover food from his garden in an eco-friendly manner. \[ \textbf{Step 2: Analyze the answer choices.} \] \[ \textbf{A. Biological action:} \text{This term is vague and does not specifically refer to a method of managing garden waste.} \] \[ \textbf{B. Composting:} \text{This is the process of breaking down organic matter, such as food scraps and garden waste, into nutrient-rich compost, which can be used to improve soil quality.} \] \[ \textbf{C. Incineration:} \text{This involves burning waste, which is not an eco-friendly method for organic garden waste as it produces emissions.} \] \[ \textbf{D. Carbon sequestration:} \text{This refers to the process of capturing and storing atmospheric carbon dioxide, which is not directly applicable to the method of using organic waste in a garden.} \] \[ \textbf{Step 3: Select the correct answer.} \] Since composting is the method that uses organic matter and leftover food to create a useful product for the garden, the correct answer is: \[ \boxed{\text{B. Composting}} \]