Option 1 -> The passage states the group "lacked energy and dynamism" under J.R.D. Tata, not that it was dynamic.
Option 2 -> Directly matches the passage: "The group was known for its stability but lacked energy and dynamism."
Option 3 -> Innovation and risk-taking came after Ratan Tata took over, when the group "embraced daring ideas."
Option 4 -> Global expansion happened under Ratan Tata's leadership when the group "expanded overseas."
Hence, Option 2: Stable but lacking energy -> The passage explicitly describes the Tata Group during J.R.D. Tata's 50+ year chairmanship as being "known for its stability but lacked energy and dynamism," which changed only after Ratan Tata's leadership transformed it into a "symbol of vibrancy and innovation" -> correct