The correct answer is option 2, which states that Goshala Maskariputra was not related to Buddha`s life.
Let`s analyze each option to understand why the correct answer is 2:
Option 1: Kanthaka - Kanthaka was the name of Buddha`s horse, which he rode during his departure from the palace to seek enlightenment. Therefore, Kanthaka is related to Buddha`s life.
Option 2: Goshala Maskariputra - This option states that Goshala Maskariputra was not related to Buddha`s life. There is no recorded evidence or mention of Goshala Maskariputra in relation to Buddha`s life events, teachings, or interactions.
Option 3: 1 and 2 - This means that both Kanthaka and Alara Kalama were not related to Buddha`s life. However, this is incorrect because Kanthaka was directly linked to Buddha`s life, as explained earlier.
Option 4: 3 and 4 - This means that both Channa and Goshala Maskariputra were not related to Buddha`s life. However, this is also incorrect because there is no evidence or mention of Channa not being related to Buddha`s life.
In conclusion,