Identify the correct statement: A. If 2^x = \frac{256}{\sqrt{2}}​, then x =…

Identify the correct statement:

A. If 2^x = \frac{256}{\sqrt{2}}​, then x = \frac{15}{2}

B. \frac{1}{3}​ of 50% of 150 is greater than \sqrt{576}

C. In the merit list of an examination result, the rank of a student is 5th from the top among 20 students. His rank from the bottom of the list is at 15th position

D. In a class of 30 students, the average weight of 20 students is 45 kg and the rest have an average weight of 40 kg. The average weight of the class is 42.5 kg