Final answer:
The leased line technology that provides a bandwidth capacity of 44.7 Mbps is known as a T3 line.
Step-by-step explanation:
The leased line technology with a bandwidth capacity of 44.7 Mbps is a T3 line. A T1 line is significantly slower at 1.544 Mbps. An E1 line provides a bandwidth of 2.048 Mbps, which is the standard in Europe and differs from T1. ISDN, or Integrated Services Digital Network, offers multiple channels with a total capacity far below the T3; it is more in line with consumer-grade broadband than high-capacity leased lines. The leased line technology that has a bandwidth capacity of 44.7 Mbps is option c) E1.