Question

the jokes and celebratory mood were a stark contrast to the somber postgame news conferences the last two weeks. source: los angeles times in this sentence, somber means: serious and gloomy in character lacking knowledge or information filled with wonder and delight noble and generous in spirit

Explanation:

The word "somber" is contrasted with "jokes and celebratory mood", indicating a serious and gloomy mood.

Answer:

A. serious and gloomy in character