Statement and Assumptions
Statement: Please send an official letter rather than semiofficial on this subject this time.
I. The format and emphasis of different types of letters is different.
II. We can send different types of letters on the same subject.
|A||If only assumption I is implicit|
|B||If only assumption II is implicit|
|C||If either assumption I or II is implicit|
|D||If neither assumption I nor II is implicit|
|E||If both assumptions I and II are implicit|