When could is used it refers to an ability that <span>a person generally had in the past or to something that was generally possible in the past, can is present.
I could wash the dishes for you. (having the ability to do it)
I can wash the dishes for you. (its actually going to be done)
hope this helps you! :-)</span>
I grew up and I got more mature and able to make my own decisions.
<span>You think because I am her mother I have a key?</span>
Answer:
B
Explanation:
Its not C, I doesnt suggest that he has many influential friends.
Its not D, it doesnt show that he comes from a wealthy background.
It may be A, it does show that they have a romantic interest with each other.
But I think it may be B, it explains why there was a little bit a tension in the setting between those two. It aslo explains why he would even bring up the ambassador.
Hopefully this helps!