`(X) overset(O_(3)//Zn)underset(H_(2)O)toCO_(2)+CH_(3)-underset(O)underset(||)(C)-H+OHC -underset(O)underset(||)(C)-CHO`
X is

Options

A.
B.
C.
D.

Explanation

To solve the problem, we need to identify the compound \( X \) that, when treated with ozone (O3) followed by zinc (Zn) and water (H2O), yields carbon dioxide (CO2), a ketone, and an aldehyde.

### Step-by-Step Solution:

1. **Understanding Ozonolysis**:
- Ozonolysis is a reaction where alkenes or alkynes react with ozone to form carbonyl compounds (aldehydes or ketones) and can also produce carbon dioxide depending on the structure of the starting material.
- The reaction proceeds through the formation of an ozonide intermediate, which is then reduced by Zn and H2O.

2. **Analyzing the Products**:
- The products mentioned are CO2, a ketone (CH3C(=O)H), and an aldehyde (CHO).
- This suggests that the starting compound \( X \) must have a structure that can yield these products upon ozonolysis.

3. **Identifying Possible Structures**:
- We need to consider structures that contain double bonds (alkenes) that can break and yield the products specified.
- The presence of both a ketone and an aldehyde suggests that \( X \) must have a carbon chain that can be cleaved to produce these functional groups.

4. **Evaluating the Options**:
- **Option A**: If we consider a structure like CH3-CH=CH-CHO, ozonolysis would yield CH3C(=O)H (a ketone) and CO2, along with an aldehyde.
- **Option B**: A structure like CH3-CH=CH2 would not yield both products as required.
- **Option C**: A cyclic structure might not yield CO2 effectively.
- **Option D**: A structure with additional groups that do not match the product requirements.

5. **Conclusion**:
- After evaluating the options, **Option A** is the only structure that, upon ozonolysis, produces CO2, a ketone, and an aldehyde as required.

### Final Answer:
Thus, the compound \( X \) is **Option A**.