Final answer:
B) Fatehgarh Sahib (Fort of Victory).
The Gurdwara at the place where the younger Sahibzadas were bricked alive is Fatehgarh Sahib.
Step-by-step explanation:
The Gurdwara that stands at the place where the younger Sahibzadas were bricked alive is B) Fatehgarh Sahib (Fort of Victory). This tragic event in Sikh history occurred during the persecution under the Mughal Emperor Aurangzeb. The younger sons of Guru Gobind Singh, the tenth Sikh Guru, were martyred here, and the Gurdwara was built to commemorate their sacrifice. Although Sri Harmandir Sahib, also known as the Golden Temple, is the most revered spiritual site of Sikhism, it is not the location of this specific historical event.