Question

multiple choice question
thomas is giving a keynote speech at a formal convention of highly respected medical researchers. which greeting would be the most appropriate to the occasion?
\hello, everyone.\
\hows everyone doing out there?\
\here we are!\
\distinguished guests\

Explanation:

The event is a formal convention with highly respected medical researchers, so the greeting needs to be formal and respectful of the audience's status. The other options are too casual or informal for this setting.

Answer:

D. "Distinguished guests"