A, celebratory and inviting. The festive garlands and steaming platters of food make me think of the holidays or a party, so that’s why I chose that answer.
The answer is conditional and subjunctive moods.
The conditional mood is used to talk about improbable situations and circumstances which depend on some condition.
For example: <em>If all wars were ended, the world would be a happier place.</em>
The subjunctive mood is used to describe wishes and hypothetical conditions.
For instance: <em>I wish all wars were ended. </em>
<span>Speaker, Occasion, Audience, Purpose, Subject, Tone</span>
