Follow the BIDMAS rule for solving algebraic expressions.
I would say A. I hope I am right. I dunno if it would be A. or C. But I think A would be the better pick.
Answer:
Three consecutive numbers are 27,28,29
Step-by-step explanation:
Given : The sum of three consecutive integers is 84.
To find : What are the integers?
Solution : Let three consecutive numbers 
So, according to given situation 'sum of three consecutive integers is 84'.





So,


Therefore, three consecutive numbers are 27,28,29