Answer:
There are different phases of railroad expansion with the innovations in technology.
Explanation:
Few of the technological innovations are described below that leads in railroad expansion more rapid.
1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.
2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.
3. Bullet train technology has been introduced, that makes the railway trains more faster.
4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.
Both yeah and no, depending on personal opinion
The best and the most correct answer among the choices provided by the question is the first choice. We can infer from the excerpt that <span>Jim felt important enough to place his full name on the mailbox when he enjoyed a higher income. </span>I hope my answer has come to your help. God bless and have a nice day ahead!