Based on your question, the correct interpretation of the word "monumental" in the context of the paragraph would likely be:
B. The word "monumental" is used to describe the significant role of bees, connoting that they are incredibly important.
This interpretation suggests that "monumental" emphasizes the importance of bees, highlighting their essential contributions to ecosystems, agriculture, and overall biodiversity. The connotation here is one of significance and value rather than just size or economic factors alone.