Why: This answer covers the definition of Sangam Age, the three literary assemblies, major works, the three dynasties mentioned, economic significance through maritime trade, and the unique characteristics of Sangam literature compared to other early Indian literature.

Why: Tolkappiyam, authored by Tolkappiyar, is the earliest of the Tamil literature works. Although it is primarily a work on Tamil grammar, it also offers valuable information about the political and socio-economic conditions of the Sangam period. It is the oldest surviving Tamil grammar work from the Sangam Age. Silappathigaram and Manimegalai are later literary works, while Pattuppattu (Ten Idylls) is part of the classical anthology but not the earliest. Therefore, the correct answer is C.

Why: This comprehensive answer addresses all three Sangams with their locations and surviving works, explains the socio-political structures including political organization, royal patronage, social stratification, economic conditions, religious practices, and concludes with discussion of the period's decline.

Why: This statement is false. Although Aham and Puram represent two major poetic schools of Sangam literature—with Aham focusing on subjective love themes and Puram centering on objective, public, and heroic subjects—the poems found within the Padinen Kilukanakku group were actually composed during the Post-Sangam period, specifically between 200 BCE to 100 BCE. This makes them later than the main Sangam period (300 BCE to 300 CE), and they are therefore classified as Post-Sangam works rather than works of the Sangam period proper, though they represent a continuation of Sangam composition style. These Aham and Puram poems are among the oldest surviving Tamil poetry, but they postdate the classical Sangam Age.