| a. Early versions of the S language contain functions for statistical modeling |
| b. The book Programming with Data by John Chambers documents S version of the language |
| c. In 1993 Bell Labs gave StatSci (later Insightful Corp.) an exclusive license to develop and sell the S language |
| d. The book Programming with Data by IBM documents S version of the language |
| Answer: Early versions of the S language contain functions for statistical modeling |