David is writing a response to an op-ed in his school newspaper with which he initially agreed. However, during his research, he found compelling evidence that made him change his position. What should he do next?

A. Write a strong rebuttal to the new evidence.
B. Use the new evidence from his research as counterarguments.
C. Set the new evidence aside and focus on finding facts to support the op-ed's claim.
D. Present the new evidence and old evidence and let readers decide which one they agree with.