Correct Answer: Treasure trove

Solution : The second option is correct.

Explanation: The word cornucopia is a noun that originates from the Latin words cornu (horn) and copia (abundance). It is often used metaphorically to represent a symbol of plenty or an abundant supply of good things. In the given options, treasure trove closely aligns with the concept of abundance or a rich collection of valuable things, making it the most fitting synonym for cornucopia.

Therefore, the correct synonym is treasure trove.

The meanings of the other options are as follows:

• Sink hole: A sinkhole is a depression or hole in the ground caused by the collapse of a surface layer.
• Malaise: This word means a general feeling of discomfort or unease.
• Avarice: This term refers to extreme greed or a strong desire for wealth.