
To determine the compound A from the reaction shown in the image, let's analyze the given chemical reaction:
The compound in question has two carboxyl groups. When heated (indicated by the delta symbol, ∆), a compound with two carboxylic acids can undergo decarboxylation. This process results in the removal of a carbon dioxide molecule (CO₂) from the compound.
Step-by-step Solution:
Therefore, the correct answer is option (c).