The correct answer is option 2, which states that Madame Blavatsky and H.S. Olcott founded the Theosophical Society in India in 1879.

Madame Blavatsky, also known as Helena Petrovna Blavatsky, was a prominent Russian spiritualist and occultist. She played a key role in the establishment of the Theosophical Society, which aimed to promote the study and understanding of spiritual and occult principles.

H.S. Olcott, on the other hand, was an American journalist and lawyer who became deeply interested in spiritualism and theosophy. He collaborated with Madame Blavatsky in founding the Theosophical Society in India and served as its first President.

Option 1, which suggests that Annie Besant was a co-founder of the Theosophical Society, is incorrect. While Annie Besant did become a prominent member and leader of the Theosophical Society later on, she was not among its original founders.

Option 3, which states that H.S. Olcott and Annie Besant founded the society together, is also incorrect. Although both individuals played significant roles in the society, they were not the founding members.

Option 4, which suggests that Madame Blavatsky and A.O