Definitley nanas in pic 3, it’s too late now the buds surrounding it will start to pollinate imisiatley. I wouldn’t wait and take any buds that are already showing banananana! You cannot cut them off they are not a pollen sac like the male flower it’s purley the male organ inside a female organ supplying hormones that fertilise the surrounding bud. Good luck man
pic 3 is a nanner definitely 100percent and if u are planning to continue this further nannas don't need to burst to pollinate your other buds they are already open pollen sacks my friend