The elements present in starch are

Options

A. carbon, hydrogen sulphur
B. carbon, hydrogen and oxygen
C. carbon, hydrogen and nitrogen
D. carbon and hydrogen only

Explanation

### Step-by-Step Solution:

1. **Understanding Starch**: Starch is a type of carbohydrate that serves as an important energy source in our diet. It is an organic compound made up of various elements.

2. **Chemical Formula of Starch**: The chemical formula for starch is C6H10O5. This formula indicates the types and numbers of atoms present in a starch molecule.

3. **Identifying the Elements**: From the chemical formula C6H10O5, we can identify the elements:
- **C** stands for Carbon
- **H** stands for Hydrogen
- **O** stands for Oxygen

4. **Analyzing the Options**: Now, let's evaluate the options provided in the question:
- **Option 1**: Carbon, Hydrogen, Sulphur - Incorrect (Sulphur is not present in starch)
- **Option 2**: Carbon, Hydrogen, Oxygen - Correct (These are the elements present in starch)
- **Option 3**: Carbon, Hydrogen, Nitrogen - Incorrect (Nitrogen is not present in starch)
- **Option 4**: Carbon and Hydrogen only - Incorrect (Oxygen is also present)

5. **Conclusion**: The correct answer is **Option 2: Carbon, Hydrogen, and Oxygen**.