Assure could mean making sure something happens, to comfort or remove doubts from a person, or make someone sure of something.
If it's one word answers it could be persuading, guaranteeing, promising, convincing, reassure, satisfy, or tell.
I hope this helps without answer choices it's kind of hard to know what kind of answer you need. Have a great day!
A or D, defanitly not B or C.
Most Likely A.
The correct closing would be:- With warm wishes,
Answer: C) with warm wishes,
(on a side note, you may add your name for example:-
With warm wishes, Marie Hannah)
Answer:
even-handedness or impartiality