Which of the following texts was compiled during Gupta Period?
1. Brihatkatha
2. Kavya Mimansa
3. Amarkosh
4. Awapnavasavadutta

The correct answer is Brihatkatha.

•  Bṛhatkatha is an ancient Indian epic (Sanskrit, the Great Narrative) said to have been written by Guṇaḍhya in a poorly-understood language known as Paisaci language.
• The work no longer exists but several later adaptations the Kathāsaritsagara, Bṛhatkathamanjari, and Bṛhatkathaslokasaṃgraha in the Sanskrit language, as well as the Vasudevahiṃḍi and Peruṅkatai.
• The date of its composition is uncertain. According to testimonials by later Sanskrit poets such as Subandhu, Daṇḍin, and Baṇa, the Bṛhatkatha existed in the 6th century CE.

• Rajashekhara wrote the Kavyamimamsa between 880 and 920 CE.  He was the court poet of the Gurjara Pratiharas dynasty.
• The Amarakosha was written by the ancient Indian scholar Amarasimha in the Sanskrit language. It is the popular name for Namalinganushasanam.