The hymns of Rigveda were sung in which of the following tones?

Uddatta
Anudatta
Svarita
All of these

The correct answer is D. All of these.

The Rigveda is the oldest Veda, a sacred Hindu text. It is a collection of Vedic Sanskrit hymns, which were sung in three tones: udatta, anudatta, and svarita.

Uddatta is the high tone, anudatta is the low tone, and svarita is the rising tone. These tones are used to create a sense of rhythm and melody in the hymns.

The Rigveda is a very important text in Hinduism, and its hymns are still sung today. The tones of the hymns are said to have a powerful effect on the mind and soul.