Correct Answer: Curiosity

Solution : The second option is correct.

Disregard means to ignore or pay no attention to something. In contrast, curiosity represents a keen interest or eagerness to know or learn about something.

The meanings of the other options are as follows:

• Hidden means concealed or not easily seen.
• Demote means to lower someone's rank or position.
• Split means to divide or break apart.

Therefore, the correct answer is curiosity.