Select all that apply. during the late 1700s and early 1800s, canal building went through many changes. which statements below tell about those changes. a. private firm cut canals at key point and connected rivers. b. the british parliament passed laws directing that rivers be dug deeper and made wider. c. to a web of water ways, boats could reach towns they had never been able to reach before. d. americans showed little interest in the development of canals, regarding them as an old world mode of transportation. f. road development made canals obsolete and rarely used.