What does the term "dubiously" imply?

The term "dubiously" implies a sense of uncertainty or skepticism. When something is described as being done dubiously, it suggests that there is doubt or hesitation regarding its legitimacy, truth, or reliability. This term often conveys a lack of trust or the presence of ambiguity in the situation being referenced. Therefore, "uncertain" captures the essence of what "dubiously" signifies, as it points to a questioning or unsure attitude toward the subject at hand. The other choices present a more definitive stance, which does not align with the inherent doubt reflected in the adverb "dubiously."