What is the term for someone who learns how to do a job through hands-on experience?

1. while some people only consider the cute little bundle of fur, there are many daily rituals of pet ownership. 2. one of the biggest surprises of adopting a puppy is how much exercise it needs on a daily basis. 3. the cost of food, the veterinarian and general supplies is another surprise to many new dog owners. 4. adopting a puppy is a hefty responsibility. read the four sentences and determine which answer shows the most logical order. a) 1, 4, 3, 2 b) 2, 3, 1, 4 c) 3, 2, 4, 1 d) 4, 1, 2, 3