Assertion (A) : The Aham and Puram poems of the Padinen Kilukanakku group formed a continuation of the Sangam composition. Reason (R) : They were included under the Post-Sangam works as against the Sangam works proper.

The correct answer is Option 2.

Assertion (A) is true because the Padinen Kilukanakku (Eighteen Lesser Texts) include poems dealing with Aham (inner/love) and Puram (outer/war) themes, such as Kalavali Narpadu. These themes directly mirror the literary traditions established during the Sangam era, representing a thematic continuation into a later period.

Reason (R) is also true. These works are classified as Post-Sangam (Didactic period) because they were composed between 100 CE and 500 CE, distinguishing them from the "Sangam works proper" (Ettuthogai and Pattupattu). While the Sangam proper focused on emotions and valor, the Post-Sangam works shifted focus toward ethics and morals (like the Tirukkural).

Why Option 2 is correct: While both statements are historically accurate, the chronological classification (Reason) does not explain why the thematic continuation (Assertion) exists. The classification is a matter of nomenclature, whereas the continuation is a matter of literary style. Thus, R is not the logical explanation for A.