Buddha attained nibbana in which city?

Kusinagara

The correct answer is Option (2) → Kusinagara

Nibbana (or Parinirvana) refers to the final passing away of the Buddha after his death, ending the cycle of birth and rebirth. According to Buddhist tradition, Gautama Buddha attained Parinirvana at Kusinagara (present-day Kushinagar in Uttar Pradesh, India) around 483 BCE.