Maoron Texteuna, B sppe Koroporo cogepxintca 55 HeilipoHoe, o603Hayalor: Select one A (}_{43)^99Tc B 43^98Tc D C. 43^97Tc D. 43^95Tc

The correct answer is A. ${}_{43}^{99}Tc$.<br /><br />Explanation: The question is asking for the correct representation of the isotope Technetium-99. In this representation, the atomic number (number of protons) is 43, and the mass number (total number of protons and neutrons) is 99. Therefore, the correct representation is ${}_{43}^{99}Tc$.