Transition elements — practice question

Which row gives the characteristics of a typical transition element?

• Amelting point high, forms coloured compounds no, can act as a catalyst no
• Bmelting point high, forms coloured compounds yes, can act as a catalyst yes
• Cmelting point low, forms coloured compounds no, can act as a catalyst yes
• Dmelting point low, forms coloured compounds yes, can act as a catalyst no