Final answer:
Cranes, diggers, and similar tools are predominantly used in the construction industry for building various structures and facilities. So, the correct answer is option a) Construction.
Step-by-step explanation:
The question asks which field utilizes cranes, diggers, and other similar tools. The answer is construction.
These tools are heavily involved in the construction industry and are essential for building structures like roads, bridges, ports, and airports, which are all forms of capital that facilitate the production of goods and services.
In addition, the construction sector also integrates complex machinery like cranes to erect larger buildings and structures, which has been a practice dating back to ancient times where such engineering allowed the construction of enduring monuments.
So, the correct answer is option a) Construction.