Consider that the dresser costs $40 to Violet. So the cost price C is $40.
She wants to sell the dresser for at least %65,
Then the selling price S must be greater than or equal to $65,

Since there is no discount or any overhead expense, the selling price is the same as the marked price M,

Then the minimum marked price will be $65.
Therefore, option (C) is the correct choice (but the % symbol should not be there).