Concept:Extractive industry refers to activities that involve obtaining raw materials directly from nature.
Explanation:Exploration of minerals involves searching for and removing mineral resources from the earth.
This is a primary activity and directly fits under the extractive industry.
Construction of roads is an infrastructural activity, not extraction.
Canning of tomato purees is food processing or manufacturing.
Assembling of cars is a manufacturing and assembly activity.
Thus, only exploration of minerals is classified as an extractive industry activity.
Answer:A. exploration of minerals