In Vedic period, "Yam' term was used for:

Correct option is D

Correct Option: d)
The Vedic period laid the foundational acoustic and musical concepts for Indian classical music. The terminology used in texts like the Samaveda is crucial for understanding the evolution of musical thought.
Information Booster:
· In the Vedic period, the term "Yam" was used to denote the concept of a musical note or Swar (d).
· This is a well-documented fact from ancient Sanskrit texts on musicology, where the seven basic notes (Sa, Re, Ga, Ma, Pa, Dha, Ni) were referred to by the names Yam, Rajan, etc.
Additional Knowledge:
· Nad (a) refers to the primordial or manifested sound itself.
· Gram (b) refers to the old scale system (like Shadja-grama, Madhya-grama).
· Shruti (c) refers to the microtonal intervals (22 in number) that exist between and comprise the seven notes.