What is the symbol of technetium element?

The correct answer is Option (2) → Tc

Technetium (Z = 43) is the 4d transition element of group 7, below manganese, with configuration \( \mathrm{[Kr]\,4d^{5}\,5s^{2}} \). Its symbol is Tc. It was the first element to be made artificially (its name comes from the Greek technetos, artificial), and all its isotopes are radioactive.