Which of the following statements about P.C. Mahalanobis is true?

A) He was the founder of the Indian Statistical Institute in 1931.
B) He served as the Indian Statistical Institute's director for over five decades.
C) He is often referred to as the "Architect of the Second Five-Year Plan" of India.
D) He advocated for the active involvement of the private sector in the economy.

Choose the correct answer from the given options:

A and C only

P.C. Mahalanobis (1893-1972) was an esteemed scientist and statistician of international renown.
He founded the Indian Statistical Institute in 1931.
Mahalanobis played a key role as the architect of India's Second Five-Year Plan.
He advocated for rapid industrialization and emphasized the active involvement of the public sector in driving economic development.
He championed the importance of industrialization as a means to propel India's progress and transformation.
Mahalanobis’ contributions showcased his vision for a robust public sector and its pivotal role in India's developmental journey.
He passed away in 1972.