The correct option is C Aluminium Smelting industry
Aluminium Smelting is a basic or key industry whereas others are consumer industries. Copper smelting and Iron and Steel industries are other key industries. The industries that make cars, utensils, or tables and chairs can be clubbed under consumer industries. This means that goods produced by these industries can be directly used by consumers. A few other examples of consumer industries are sugar, toothpaste, paper, sewing machines, fans.This classification of industries into basic and consumer industries is on the basis of the main role or function performed by these industries.