MCQ
Under the specified conditions, substrate $X$ undergoes substitution and elimination reactions to give products $A - D. A$ and $B$ are stereoisomers, but not enantiomers. $C$ and $D$ are enantiomers. $A$ is not an isomer of $C$. Which of the following could be the starting material $X$ ?
$X\xrightarrow[\Delta ]{{{H}_{2}}O}A+B+C+D$
- A$(I)$
- B$(II)$
- ✓$(III)$
- D$(IV)$
