In break even point revenue plus zero equal?

B. expense because break even is

revenue - expense =0

revenue +0 = expense

B- expense.........................................................

 B- .......>>>>>>>>>>>expense

In the case of break even point we mean revenue actually equal to expense.

So B-Expense is right answer. 

B- Expense..................................

expense ----------------------------------------------------------------------------

Answer ( C) is the correct answer 

In Break even Revenue Equals expense, Its where the linear equation of revenue intersects with the linear equation of the expense. Hence Revenue=Expense is the break even point therefore if in break-even revenue+0=expense or Expense+0=Revenue. Revenue+1= Profit whereas Revenue-1= Loss