Ed and Ann both have lemonade with their lunch. Ed orders the regular size. Ann gets the large lemonade, which is 50 \% more than the regular. After both consume \dfrac{3}{4} of their drinks, Ann gives Ed a third of what she has left, and 2 additional ounces. When they finish their lemonades they realize that they both drank the same amount. How many ounces of lemonade did they drink together?
Answer Choices
A. 30
B. 32
C. 36
D. 40
E. 50