To answer this question, we need to understand the names of the individuals mentioned in the options:
Option A) Sir Dorabji Tata - Sir Dorabji Tata was a member of the Tata family and played a significant role in the development of the Tata Group. However, he is not the person we are talking about in this question.
Option B) Jerbai Tata - Jerbai Tata was the wife of Sir Ratanji Tata, who was the son of Jamsetji Tata. She was not directly involved in the business activities of the Tata Group.
Option C) Jehangir Ratanji Dadabhoy Tata - Jehangir Ratanji Dadabhoy Tata, commonly known as J.R.D. Tata, was a prominent figure in the Tata Group and served as the chairman of Tata Sons. However, he is not the person we are referring to in this question.
Option D) Jamshedji Nusserwanji Tata - Jamshedji Nusserwanji Tata, also known as Jamsetji Tata, was the founder of the Tata Group. He is considered one of the pioneers of Indian industry and is known for his contributions to the development of steel, power, and hospitality sectors in India. Jamsetji Tata is the person we are talking about in this question.
Therefore, the correct answer is option D) Jamshedji Nusserwanji Tata.