Which of the following pair of transition metal oxides is likely to be categorized as semiconductors?

When potential difference is applied to mobile electrons, they conduct electric current. In this case the energy band gap is very low or zero, hence such type of molecules are called metallic or good conductors to electricity (like - VO, TiO, CrO₂, etc.). If the energy band gap is  more than that of metallic conductors they are reffered to as semiconductor, i.e., FeO, V₂O₅, Mn₂O₃, CuO, etc. If the energy band gap is very large, the molecules are called as insulators like - MnO. Hence, V₂O₅ and Mn₂O₃ are both categorized as semiconductors.