Final answer:
The Yukon 1000 race is difficult because racers spend 18 hours a day paddling and begin paddling at dawn. They do not use supplies from the 1800s or look for gold along the way.
Step-by-step explanation:
According to the article, why is the Yukon 1000 a difficult race?
The Yukon 1000 race is considered difficult due to the demanding nature of the race. Racers spend 18 hours a day paddling (option A), which requires a great amount of physical strength and endurance. They begin paddling each day at dawn (option B), which means long days of continuous exertion. However, options C and D are incorrect. The race does not require the use of supplies from the 1800s nor do racers have to look for gold along the way.
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