Which of the following statements is/are correct about Shankaracharya?

1. Shankaracharya wrote the commentaries on the Upanishads and the Bhagavad Gita.

2. His philosophical views came to be known as Advaita Vedanta.

3. Shankaracharya expounded that ultimate reality is one, it being the Brahman.

Select the correct answer using the code given below:

International Relations Un Ai

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