Thinking that the students were having an evening class, the teacher left the classroom, _____.

Thinking that the students were having an evening class, the teacher left the classroom, ______.

Thinking that the students were having an evening class, the teacher left the classroom, _____.

Thinking that the students were having an evening class, the teacher left the classroom, _____.

1. A.
   slowly and gentle
2. B.
   slowly and gently
3. C.
   slow and gentle
4. D.
   slow and gently

Thinking that the students were having an evening class, the teacher left the classroom, ______.

  A. slowly and gentle                B. slowly and gently  

C. slow and gentle                  D. slow and gently