Who among the following was not a Jain Acharya?

Among the given options, Khema was not a Jain Acharya; she was a prominent Buddhist nun and one of the chief female disciples of Gautama Buddha. In contrast, the other three figures are celebrated Jain scholars and monks. Bhadrabahu was a major Jain Acharya and the spiritual guru of Chandragupta Maurya, known for leading the migration to South India. Siddhasena Divakara (6th century) was a renowned Jain philosopher and author of the 'Nyayavatara', credited with developing Jain logic. Haribhadra Suri was another prolific Jain author and philosopher who contributed significantly to Jain literature and the Age of Logic. While Bhadrabahu, Siddhasena Divakara, and Haribhadra are explicitly listed as major Jain figures and Acharyas in historical and religious texts, Khema belongs to the Buddhist tradition.

Sources

1. [1] https://en.wikipedia.org/wiki/List_of_Jain_monks