Correct Answer: imaginary

Solution : The second option is correct.

Explanation:
Imaginary is the most appropriate synonym for fictitious because both terms convey the idea of something not real, existing only in the realm of imagination or fiction. Imaginary captures the essence of being created in the mind rather than having a basis in reality, similar to the meaning of fictitious.

The meanings of the other options are as follows:

• Factual: Relating to or consisting of facts; opposite of fictitious.
• Confirmed: Established or verified to be true.
• Genuine: Authentic or real; opposite of fictitious.

Therefore, the correct answer is imaginary .