Considered the following statement.
1. Brahman is regarded as ultimate reality.
2. It is regarded as the ultimate cause of this universe.
3. In Chandogya Upanishad it is define as Tajjatan.
Which above the following statement is correct regarding Brahman in Vedic philosophy. Select the correct answer:

A. 1 and 2

B. 1 and 3

C. 2 and 3

D. All of the above

Answer: Option D