Final answer:
The correct statement is D. The student simplifies the expression correctly.
Step-by-step explanation:
The correct statement in this scenario is D. The student simplifies the expression correctly.
In this question, the student is given a series of statements and asked to determine which one is true. The correct statement is D because it states that the student simplifies the expression correctly. This means that the student accurately performs the steps required to simplify the given expression and arrives at the correct result.