The year 1601 saw the completion of which famous Sikh Gurudwara?

Correct option is A

1. The year 1601 marked the completion of Gurdwara Shri Harmandir Sahib (commonly known as the Golden Temple) in Amritsar, Punjab. This iconic Sikh Gurudwara was built under the leadership of Guru Arjan Dev Ji, the fifth Sikh Guru.
2. The Harmandir Sahib was designed to have doors on all four sides, symbolizing openness to people of all castes, creeds, and religions. The surrounding Amrit Sarovar (holy tank) was also central to its spiritual significance. Later, the gold plating of the Gurudwara was added during the reign of Maharaja Ranjit Singh in the 19th century.