Option correct is A: Vedas is a language written in Sanskrit.
The Vedic -Vedic Sanskrit- is an ancient Indo/Aryan language. Also known as the archaic form of Sanskrit. It´s related to another primitive language called Avestan.
Vedic Sanskrit is the oldest language attested in the Indian branch of the Indo-European languages family. There are four important texts in Indian which employes this variable as the basis of the Vedic religion.
The Sanskrit word Veda comes from an Indo-European therm which means: see, and it relates to the Latin verb video (to see)
Each anthem of the Vedas provides the name of a religious poet that compose it. Probably, it´s the case of clans or families more than individual authors.