Transform the following sentence into a compound sentence: 'Being dissatisfied, he left the job.'

1. ক
   He was dissatisfied and left the job.
   
2. খ
   He left the job because he was dissatisfied.
   
3. গ
   He was dissatisfied, so he left the job.
   
4. ঘ
   He left the job as he was dissatisfied.