Context: The 1st year is a lot of trial and error and there 's no big mystery about teaching that is learned at a teacher 's college . Besides ... YOU have the teacher 's manual ! We are so blessed and there is so much to choose from ... too much , at times .

Question: What 's a possible reason the 1st year is a lot about trial and error ?
Options:
0. None of the above choices .
1. Because new teachers will learn mostly from experience .
2. Because teachers have the teacher 's manual .
3. Because teaching is learned at teacher 's college .
Answer: 1