Which of the following is correct about break even point?

A breakeven point is the level of sales (or revenue generated) that equals all the expenses required for generating that revenue. It is not more than the expenses (i.e. no profit) nor is it less than the expenses (i.e. no loss). In other words there is neither loss nor profit.
At the breakeven level
Total revenue = Total expenses
(Qty x Unit Price) = (Qty x Unit Cost) + Fixed Exp
Qty x (Unit Price – Unit Cost) = Fixed Exp
Qty x Gross Margin (or Profit) per Unit = Fixed Exp