The diagram illustrates the structure of compound Q. Two of the rings, X and Y, each contain a $\text{C}=\text{C}$ bond. Which row is the correct one?
- Anumber of ester groups in one molecule of Q: 1; description of rings X and Y: both are planar
- Bnumber of ester groups in one molecule of Q: 1; description of rings X and Y: neither is planar
- Cnumber of ester groups in one molecule of Q: 2; description of rings X and Y: both are planar
- Dnumber of ester groups in one molecule of Q: 2; description of rings X and Y: neither is planar