Final answer:
Elements in region B of the periodic table are known as D) transition metals, found in groups 3-12, and are all classified as metals with conductive and malleable properties.
Step-by-step explanation:
The elements in region B of the periodic table are referred to as transition metals. These elements are found in groups 3-12 and exhibit unique properties such as the ability to conduct electricity, being malleable and ductile, and they are all metals. Transition metals are different from main-group (representative) elements, which are found in groups 1A-8A, and from inner transition metals, which include the lanthanoids and actinides found in the two rows below the main body of the periodic table. Knowing that region B corresponds to groups 3-12, the correct answer to the question about the name for all the elements in region B is option D. Transition metals.