We discussed how a dominant existing technology eventually reaches the maximum performance allowed by the laws of nature and then must be replaced by a new technology in order for continuing progress to be made. We represented this with a series of nested Technology S-Curves (TSCS). The TSC representing the older established technology, A, is eventually supplanted by the TSC representing the newer technology, B. We gave examples of lighting technologies: the incandescent lamp (technology A) having been supplanted by the fluorescent lamp (technology B), which in turn has been supplanted by LEDs. Consider a pair of nested TSCs, the first representing established Technology A (TSC-A) and the second representing new Technology B (TSC-B) which will eventually supplant Technology A. Which of the following locations in the pair of nested TSCS would offer technology entrepreneurs the most promising chance to seize opportunity and establish a new business based on a new dominant technology? Select the best answer from the entries below. (Choose one.) a. Part way along the rapid improvement stage of TSC-A b. Part way along the rapid improvement stage of TSC-B O c. Soon after the start of TSC-B O d. Entering the period of leveling off of TSC-B