Concept:
Different fruits and food items possess characteristic flavors and aromas due to specific chemical compounds.
• Banana flavor is mainly due to Isopentyl acetate.
• Lemon aroma is associated with Citral.
• Concord grape flavor is related to Methyl anthranilate.
• Potato aroma contains compounds such as methoxy pyrazines.
Step 1: Match each food item with its characteristic compound.
\[
\begin{aligned}
\text{Banana} &\rightarrow \text{Isopentyl acetate}
\text{Lemon} &\rightarrow \text{Citral}
\text{Grape-Concord} &\rightarrow \text{Methyl anthranitraye}
\text{Potato} &\rightarrow \text{2-Isopropyo-3 methoxy Pyrazne}
\end{aligned}
\]
Step 2: Write the correct matching sequence.
Thus, the correct matching is:
\[
A-III,\ B-IV,\ C-II,\ D-I
\]
Hence, the correct answer is:
\[
\boxed{(D)\ A\text{-}III,\ B\text{-}IV,\ C\text{-}II,\ D\text{-}I}
\]