Explanation:

All the above given texts were written in Sanskrit language.
The Mahavastu is a text of the Lokottaravada school of Early Buddhism. Mora than half of the text is composed of Jataka and Avadana tales, accounts of the earlier lives of the Buddha and other bodhisattvas.
The Mahavastu contains prose and verse written in mixed Sanskrit, Pali and Prakrit.
The Lalitavistara Sutra is a Sanskrit Mahayana Buddhist sutra that tells the story of Gautama Buddha from the time of his descent from Tushita until his first sermon in the Deer Park near Varanasi.
Buddhacharita is an epic poem in the Sanskrit mahakavya style on the life of Gautama Buddha by Asvagho?a, composed in the 2nd century A.D.