Correct option is A
The correct word to fill in the given blank is:
(a) splendor
The sentence "As the sun set over the lake, the sky lit up in a __________ of oranges and pinks, captivating all who watched." is best completed with "splendor," which means magnificent and splendid appearance; grandeur. This term aptly describes the breathtaking visual effect of a sunset sky filled with vibrant colors.
Here are brief definitions of the other options:
(b) complacency - a feeling of smug or uncritical satisfaction with oneself or one's achievements.
(c) benevolence - the quality of being well-meaning; kindness.
(d) voracity - having a very eager approach to an activity; great eagerness in eating or other appetites. (e) concise - giving a lot of information clearly and in a few words; brief but comprehensive.