Select the CORRECT statement with respect to the experiment you have performed.单项选择题

题目图片
A

a. As the experiment progressed, the % of both ethanol and water in the collected fractions have increased.

B

b. As the experiment progressed, the % of ethanol in the collected fractions has increased and the % of water has decreased.

C

c. As the experiment progressed, the % of ethanol in the collected fractions has decreased and the % of water has increased.

D

d. As the experiment progressed, the % of both ethanol and water in the collected fractions have decreased.

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