Which of the following sentences are used for explaining the cause when writing an apology letter?
A.
I was involved in an automobile accident on the way to work.
B.
The fact is that I had an engagement with some friends and , ignorant of your visit, accompanied them to the cinema.
C.
I read it every day and intended to finish it tomorrow. But this morning, I could not find the magazine. I must have left it somewhere.
D.
Can we reschedule for this Thursday, the same time?