Occurrence Of Metals

Step 1: Silver (Ag) is often mistakenly included in questions about 3d transition metals due to its placement in group 11, similar to transition metals.
Step 2: Among the listed elements, Mn typically has the lowest melting point of the actual 3d transition metals.
Step 3: However, the inclusion of Ag, which is actually a 4d transition metal, not a 3d, and its low melting point compared to typical 3d metals, makes it the correct choice under the given options.
Step 4: Therefore, despite the potential error in categorization, Ag is the answer if included in the options for its lower melting point among the choices.