Negating a statement involves:

Negating a statement refers to the process of asserting the opposite of that statement. It involves demonstrating that the original statement cannot be true; essentially, negation creates a contradictory assertion. Thus, it effectively destroys the validity of the original claim by presenting an alternative that the original statement cannot hold true at the same time.

In this context, the other options do not align with the definition of negation. Emphasizing the truth suggests reinforcing the original statement rather than opposing it. Leaving a statement unchanged means it retains its original meaning and validity, which is precisely what negation seeks to alter. Supporting the conclusion moves in the direction of agreement and affirmation, which again contrasts with the act of negating, as negation involves opposition rather than support.