The definition of background is either "<span>the area or scenery behind the main object of contemplation, especially when perceived as a framework for it."
or
"</span><span>the circumstances or situation prevailing at a particular time or underlying a particular event."</span>
1. No, since the word <u>luminous</u> means light or to shine brightly.
2. A <u>Joyous</u> person would be positive and happy.
3. <u>Tumultuous</u> means loud and exciting which means the meeting wasn't quiet at all.
I really hope this helps!
United States presidents contribute to Thanksgiving traditions by taking place in an event called the Turkey Pardon every year.
B is the answer I believe