Correct Option
Statement 1 is correct. Adam Osborne introduced the Osborne 1 in 1981, which is widely recognized as the world's first commercially successful portable computer. This development was a significant milestone in personal computing history.
Statement 2 is correct. Ian Wilmut, a Scottish embryologist, led the team at the Roslin Institute that successfully cloned Dolly the sheep in 1996. Dolly was the first mammal cloned from an adult somatic cell, representing a major achievement in genetic engineering and cloning research.
Incorrect Options
Option (a) is incorrect because statement 2 is also factually correct.
Option (b) is incorrect because statement 1 is also factually correct.
Option (d) is incorrect because both statements 1 and 2 are accurate.