Context: I just spent a solid whack of time in the mountains , six full days out of the last eight hiking in Garibaldi Provincial Park . And I could n't be happier still feeling the burn in my legs . It started last Sunday with a 30-plus kilometre day trip into the Diamond Head area .

Question: What is causing the narrator to be presently so exhausted ?
Options:
0. None of the above choices .
1. They could n't get to bed .
2. They did not sleep the night before .
3. They just hiked a great distance .
Answer: 3

Question: What is causing the narrator to be presently so exhausted ?
Options:
0. None of the above choices .
1. They did not sleep the night before .
2. They just went off on an excursion .
3. They could n't get to bed .
Answer: 2