What title was given to the rulers of iran in the islamic world in the early modern era? a. shah b. king c. emperor d. khan

The correct option is "A", "Shah".

Shah is a term actually derived from “Khshayathiya” which is a Persian word. Sometimes the word is used in another form of “Shahanshah” which means king of the kings. This title was taken up by the Pahlavi Dynasty in the twentieth century.

executive, (president and about 5,000,000 workers) legislative (senate and house of representatives) and judicial (supreme court and lower courts)

explanation:

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.