Which of the following main industry/industries was/were developed in the second industrial revolution that took place after about 1850?

The Second Industrial Revolution, occurring roughly from 1850 to 1914, was characterized by the development of chemical and electrical industries, along with steel, petroleum, and rail. Coal, iron, cotton spinning and weaving, and steam engines were hallmarks of the First Industrial Revolution (late 18th to early 19th century). Major innovations of the Second Industrial Revolution included electric power, internal combustion engines, and synthetic chemicals.