Refer to the figure above The purpose of RE is to Select one
     Refer to the figure above. The purpose of R_E is to  Select one:  develop the output voltage.  Establish a dc base voltage.  Stabilize the operating point with negative feedback. Maintain V_BE at 0.7 V. 
  
  Solution
RE in circuit is used to handle larger input signals without incurring nonlinear distortions at output. Therefore option c is correct stabilise the operating point with negative feedback

