Under what circumstances does one have 2 A choices on a red or green day? I had 2 As today and it suddenly occurred to me that it might be the wrong thing!
On red and green you can have either one or two HEAs - the choice is yours. There are no rules to say when you should have one or when you have two. It's entirely up to you to decide. Some people will always have two while others choose only to have one.