The astronaut waved at the camera ______ she floated through the weightless environment of the space station.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
, and so
- B
as
- Ccheck_circle
, as
- D
; while
Explanation
", as" introduces a subordinate clause showing simultaneity. " as" can be valid as a restrictive clause but the comma fits the descriptive sense; ", and so" implies wrong cause/effect; "; while" is misplaced punctuation.