If A is supposed to be vexed, that is the answer. The Nurse even says, " I am so vexed..."
Yes it is true that she kisses him when Romeo claims that saints have lips and can therefore kiss, but it should be noted that there is some hesitation at first.
What are the underlined verbs? Learned, Taught, Helped,
With this, you have to put 'Have' in front of the verbs.
We (have) Learned
Teacher (have) taught us There is no reason to go beyond this, B is the irregular one.