Answer:
Expedition is defined as a journey that is undertaken by some people for a particular reason.
Explanation:
Expedition are the journey that a group of people set for for a particular purpose. It is mainly for research purposes and collecting scientific information.
In the context, Professor Shonkuhad has planned for an expedition for five years into space. Now if I were given an opportunity to organize such an expedition to the space I would have been very happy. I will make many arrangement so that the people going for the expedition does not have to face any difficulty there. Firstly, I will see that there is enough food stock for the people to eat in the space. I will also check that all the necessary equipment and tools should be carried along when going as it can become handy at times.
The people going should also carry diaries to make a note of everything they encounter there. And lastly, every member should be am expert in one field or the other so that each member can help each other. They will also be properly trained before going out for the expedition.
I think that the answer is B: 84 days
