Final answer:
Leather gloves are used to pick up very hot pieces of metal, making Technician B correct.
Step-by-step explanation:
Technician B is correct. Leather gloves are indeed used to pick up very hot pieces of metal. They provide protection against heat and ensure the safety of the technician's hands. While wearing gloves is not always necessary, it is important to wear them in situations where there is a risk of injury or exposure to harmful substances.
Learn more about Wearing gloves for protection