The correct option is 2 only
Explanation
The Provincial Styles of Indo-Islamic architecture emerged as regional kingdoms asserted independence from the Delhi Sultanate. These styles adapted the imperial architectural traditions to local geography, available materials, and indigenous artistic sensibilities, resulting in unique regional schools such as those of Bengal, Jaunpur, Gujarat, and Malwa.
Statement 1 is Incorrect:
The architecture of Bengal and Jaunpur is regarded as distinct amongst provincial styles because they developed highly original features. The Bengal style is famous for its curvilinear cornices and roofs (derived from bamboo huts), while the Jaunpur (Sharqi) style is distinguished by its massive, battered propylons (gateways) that screen the dome. These features mark a clear departure from the standard Imperial style of Delhi.
Statement 2 is Correct:
Jaunpur architecture (Sharqi style) is characterized by a bold, forceful, and military-like appearance, utilizing grey sandstone and granite (often repurposed from older structures). It does not feature the extensive use of white marble. The extensive use of white marble is a hallmark of the later Mughal architecture or specific monuments in the Malwa style (e.g., Hoshang Shah's Tomb).
Statement 3 is Incorrect:
Bengal is an alluvial plain where stone is extremely scarce. Therefore, the Bengal school of architecture did not reject bricks; rather, it relied heavily on brick and terracotta as the primary building materials. This reliance on brick necessitated distinct structural adaptations, such as short, heavy pillars and curved roofs to handle heavy monsoon rains.
Key Takeaway:
The Bengal Style is defined by the extensive use of brick and the curvilinear roof (Bangla roof). The Jaunpur Style is defined by the use of stone and massive propylons (gateways) without minarets or extensive white marble.