Step 1: Concept
Plant families are often identified by their specific fruit types.
Step 2: Meaning
A "silique" is a dry, dehiscent fruit that is typically several times longer than it is broad.
Step 3: Analysis
This fruit type is a characteristic feature of the Brassicaceae (mustard) family.
Step 4: Conclusion
Hence, Silique is the fruit of Brassicaceae.
Final Answer:(C)