Final answer:
The three jobs an elf can have are (a) toy-making, gift-wrapping, and reindeer caretaker, where toy-making might be seen as the best due to its creative nature, and reindeer caretaker is the most dangerous due to the unpredictability of live animals.
Step-by-step explanation:
The three jobs an elf can have are toy-making, gift-wrapping, and reindeer caretaker. While the notion of 'best' is subjective and may depend on personal preferences or specific context, toy-making could be seen as the most fun or fulfilling for an elf who loves crafting and bringing joy to children.
However, in terms of danger, being a reindeer caretaker might be more hazardous due to the potential for heavy lifting and handling of live animals which may be unpredictable. Therefore, the answers would be: a) Toy-making, Gift-wrapping, Reindeer caretaker; Best: Toy-making, Most dangerous: Reindeer caretaker.