Final answer:
The sentence from the article that is an opinion is: "However you decide to mark the occasion, your efforts are likely to be appreciated by veterans like Mark Lucas."
Step-by-step explanation:
The sentence from the article that is an opinion is:
However you decide to mark the occasion, your efforts are likely to be appreciated by veterans like Mark Lucas.
This sentence is an opinion because it expresses a personal belief or judgment, rather than stating a fact. It suggests that the efforts of individuals to acknowledge and honor veterans will be appreciated by veterans themselves.