The displayed diagrams show the structures of three compounds, W, X and Y. Which of the following statements about these three compounds are correct? 1 W and Y are both alcohols, while X is a carboxylic acid. 2 W, X and Y all have the same molecular formula. 3 W and Y are structural isomers of each other.
- A1 and 2 only
- B1 and 3 only
- C2 and 3 only
- D1, 2 and 3