B

Explanation:

In the context of the Sale of Goods Act, contingent goods are goods whose acquisition by the seller depends on a contingency that may or may not occur. These are classified as future goods, as they are not yet owned or possessed by the seller at the time of the contract. Option B (future) is correct, as contingent goods fall under the category of future goods. Option A (existing) is incorrect, as existing goods are those already owned or possessed. Option C (contingent) is misleading, as it describes the condition, not the category. Option D is incorrect, as contingent goods are a recognized type. The answer “B” is as provided in the attachment.