You are supposed to be where you are supposed to be at 8:30, which means leaving at 7:30. However, your significant other has to leave at 7, so you have to take younger child to school, which means leaving for where you are supposed to be at 8:15. At 7:45, older child calls and says she needs her Latin book and folder, and she has already forgotten them once, and if she forgets them again her teacher will be mad and she will get a 0, and you have to bring them to her after you take younger child to school. Older child's school is ten minutes in the opposite direction from where you are supposed to be.
a) Bring her the book and folder, because the most important thing is your child's education and happiness.
b) Tell her she's the one who forgot the book and folder, so she needs to deal with the consequences, because she needs to learn a lesson.
c) Tell her you will write a note to the teacher, because your work is more important than her grades.
d) Berate and lambaste her but bring her the book and folder anyway, because you operate on no principles except getting through the morning.