Answer:
Sharon is trying to maximize her marginal utility under the fixed budget.
Explanation:
She is buying exactly twice as many orange juices than sodas, because her marginal utility from juice is twice as much as her marginal utility from soda (60 x 30).
She is considering the marginal utility above the price when making her purchase decisions, because while orange juice provides more utility, it is also more expensive than sodas ($2.00 per bottle vs $1.00 per bottle).
