All the Jain works you have listed are in Prakrit (including its Jain/Ardhamāgadhī/Māhārāṣṭrī forms):

• Aṅgavijjā – mainly in Mahārāṣṭrī / Jain Prakrit
• Vasudevahindī (Vasudevahiṇḍī) – in archaic Mahārāṣṭrī Prakrit
• Ṛṣibhāṣita (Isibhāsiyāiṁ) – in very old Ardhamāgadhī / mixed Prakrit
• Dhūrtākhyāna – in Jaina Mahārāṣṭrī Prakrit
• Dravya Parīkṣā – verses composed in a late Jain Prakrit (with Apabhraṃśa influence)

So, the correct response is: all of these are Prakrit works.