For each of the following compounds, draw a structure and identify if it can show optical acitivity.
a. 2-bromobutane
b. cis-1,2-dichlorocyclohexane

• A. a. Optically active
  b. Optically active
• B. a. Optically inactive
  b. Optically inactive
• C. a. Optically active
  b. Optically inactive
• D. a. Optically inactive
  b. Optically active

Answer: (C)