Answer:
d- It would be appreciated if you...
Explanation:
Persuasive request
It is a request to change one's belief,attitude by the help of the written submission like letter etc.
There are three components-
Opening-Start with something different like quotes or greeting etc.
Body-It include main thing to focus on it.
Closing-It is the reminder of the appeal.
b We need you to give .. c- Will you please . . .? These two are directly going for the change(body),we will eliminate these.
a- We think it would be good if you . . . ,it is also approaching the result and we are using 'WE' so we can also eliminate this.
d- It would be appreciated if you....,In this we are starting with greeting. So it is a persuasive request.