Observe the following reactions:
$I$) $\text{Sucrose} (aq) + H_2O \xrightarrow{x} \text{glucose} + \text{fructose}$
$II$) $\text{Glucose} (aq) \xrightarrow{y} \text{ethanol} + CO_2$
What are $x$ and $y$ respectively?

• A
  Invertase,Zymase
• B
  Zymase,Diastase
• C
  Diastase,Zymase
• D
  Diastase,Invertase