The correct answer is C. Jyoti Basu.
Jyoti Basu served as the Chief Minister of West Bengal from 1977 to 2000, a total of 23 years. He is the longest-serving Chief Minister of any Indian state.
Naveen Patnaik has served as the Chief Minister of Odisha since 2000. He is the second-longest-serving Chief Minister of any Indian state.
Pawan Kumar Chamling has served as the Chief Minister of Sikkim since 1994. He is the third-longest-serving Chief Minister of any Indian state.
Nitish Kumar has served as the Chief Minister of Bihar since 2005. He is the fourth-longest-serving Chief Minister of any Indian state.
Jyoti Basu was born in 1914 in Kolkata, British India. He joined the Communist Party of India in 1938 and became a leader of the party in West Bengal. He was elected to the West Bengal Legislative Assembly in 1952 and served as the Leader of the Opposition from 1967 to 1977. In 1977, he led the Left Front to victory in the West Bengal Assembly elections and became the Chief Minister of the state. He served as the Chief Minister of West Bengal for 23 years, until his retirement in 2000.
Jyoti Basu was a popular and respected leader. He was known for his commitment to social justice and his work to improve the lives of the poor. He was also a strong advocate for federalism and the rights of the states.
Jyoti Basu died in 2010 at the age of 96. He was a towering figure in Indian politics and his legacy will continue to inspire people for many years to come.