I don't see the question you might want to attach it.
<span>los viajes de ella -> su viaje, it will be "sus viajes"</span>
Answer:
Explanation:
Los medio naturales de la zona fría o medios polare se sítuan entre el Circulo Polar Ártico y el Polo Norte y entre el Circulo Polar Artico y el Polar Sur. Las zonas friars se localizan en los círculos polares. El Ártico y el Antártico que son correspondientes polos norte y sur.
The answer is (a) because compro is bought in Spanish and in the question it says “yesterday he bought the gifts for his mother” so bought would be the best answer. (B) is to buy I guess like I will buy chicken. And (c) is like they bought chicken. How I know this is well I speak Spanish I hope this helps!