Latter, B
Your nose isn't the first thing people see about your face, it's the latter. They see your eyes THEN your nose, then your mouth, in order going down. Just label them A B and C and you'll never forget!
Imagine saying A B C as you look down someones face at their eyes, nose and mouth. Their nose is B!
おつ, いつ
おと, きのと
None
If you don't have any cereal you have to eat your B breakfast option. Oats (おつ). You don't hate oats, but they're definitely not your first choice.
Imagine running out of cereal so you have to eat your latter option of breakfast oats. They aren't awful but they aren't your A breakfast choice, that's for sure.