The office memo read as follows: "there is a mandatory meeting at 3: 00 p. m. on thursday. the newest sales numbers will be covered in detail, and then the appropriate promotions will be announced."

what is the key idea of this passage?

a. this meeting will discuss the business's success and who achieved the most.
b. sales numbers are often a very important element in a business's profits.
c. getting promoted is traditionally done during the required business meetings.
d. regular meetings tend to be held during the late afternoon in mid-week.