A student's work to simplify a radical is shown below. Select the statement which best applies to the sample mathematical work.
54 = 27-2
27.2 = 32
Thus, 54 = 3/2
A. The equality : 54 = 27.2 is incorrect or invalid.
B. Removing the 27 from under the radical in the second step is incorrect or invalid.
C. The work shown above is correct, however 3/2 may be simplified further.
D. The work shown above is correct, and 3/2 may not be simplified further.