______ , the proposal received unanimous approval from every member of the board on its first reading.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
Drafting carefully over several months
- B
When the staff drafted carefully over several months
- C
Having drafted carefully over several months
- Dcheck_circle
Drafted carefully over several months
Explanation
Past participle "Drafted carefully" correctly modifies the subject "proposal" (passive: the proposal was drafted). The other options either dangle or change voice illogically.