Vivian Consumes Two Goods X and Y

Vivian consumes two goods X and Y. Her current consumption pattern is such that, while she is operating on her budget constraint, her marginal utility per dollar of Y is less than that per dollar of X. Which of the following statements is true?

A) Vivian is operating at a point on her budget constraint that lies below and to the right (to the south-east) of the point of tangency between her budget constraint and the highest possible indifference curve.
B) In order to maximize her utility, Vivian should consume more Y and less X.
C) Vivian is operating at a point on her budget constraint that lies above and to the left (to the north-west) of the point of tangency between her budget constraint and the highest possible indifference curve.
D) Vivian is operating at a point where her budget constraint is tangent to the highest possible indifference curve.