Situated at Deogarh, Dashavatar Temple of the Gupta period which is dedicated to Lord Vishnu was earliest known in north India due to its style of architecture.

Correct option is B

The Dashavatar Temple in Deogarh, dedicated to Lord Vishnu, is an early example of Panchayatan Temple architecture.

Explanation:
● Panchayatan temples have a main shrine surrounded by four subsidiary shrines.
● The Dashavatar Temple is known for its Gupta-period architecture, which is simplistic yet elegant.
● The temple features carvings depicting Hindu mythological scenes.

Information Booster:
● The Gupta period is often called the Golden Age of Indian art and architecture.
● Dashavatar Temple represents the evolution of structural temple design.
● It is one of the earliest known Vishnu temples in North India.

Additional Information:

• (A) Chaunsath Yogini Temple: Located in Madhya Pradesh, unrelated to this context.
• (C) Patalpuri Temple: Located in Allahabad.
• (D) Visalakshi Temple: Located in Varanasi.