Answer:
Star C
Step-by-step explanation:
Based on this information and the attached photo we can say that you need to travel to Star C. This is because as you can see in the picture Star C is located between the 70°E Vertical Line and 80°E Vertical Line at just about half-way, that would make it 75°E. It is also between the 10°N Horizontal Line and the 20°N Horizontal Line, although much closer to the 10°N which would put it at roughly 13°N. And since these match the coordinates in the question perfectly then you would be heading to this Star Location.