In which Indian Religion, there are 24 tirthankaras?

Answer: Option A

In Jainism, a tirthankara (Sanskrit: tīrthaṅkara; English: literally a 'ford-maker') is a saviour and spiritual teacher of the dharma (righteous path). The word tirthankara signifies the founder of a tirtha, which is a fordable passage across the sea of interminable births and deaths, the saṃsara.