At what stage is acceptance of offer by post valid? When the letter is? by Sunday | Jul 22 | Commerce WAEC | 0 comments A. written B. posted C. delivered D. replied E. read Correct Answer: Option C – delivered Users Also Read These:Which of the following means of payment requires…SS3 First Term English Language Lesson Note – Letter…Which of the following requires acceptance by the…A counter offer is an offer that is?A requirement for an offer to be valid is that it should be?