You’re outline that you have provided is correct
I would choose A and B because you need and main idea about the product and you also need a major detail about the product. I am not sure I just says what I think it is important. Like if it help
Answer:
I haven't seen Oliver since last week.
We’ve only lived in this house for a few months.
I haven’t put anything on since April 1st. That was my birthday.
We started out revision at 10am and we’ve been studying since then!
My parents have been to lesson for almost two decades.
You’ve been talking on the phone for over an hour.
Dana has loved making jewelry since the day she started.
Alan hasn’t been feeling well since New Year’s Day.
We’ve been been walking around town for hours!
