Solution:According to Emeneau (1956), India qualifies as a linguistic area due to shared features across its diverse languages, regardless of their genetic lineage.
A. (Retroflexion) → Many Indian languages (Indo-Aryan, Dravidian, Munda) have retroflex sounds (/t, d/).
B. (Nasalization of vowels) → Present in Hindi, Bengali, Marathi, and Dravidian languages.
D. (Ergativity) → Some Indian languages like Hindi, Rajasthani, and Kashmiri display ergative sentence structures in the past tense.
C. (Aspirated consonants) is not uniquely Indian, as aspirated stops exist in other languages like Thai and Chinese.
E. (Prioritizing tenses over aspect and modality) is incorrect because Indian languages prioritize aspect (perfective/imperfective) more than tense.