Describe what it means to have efficient capital market, including:Describe the behavioral

Describe what it means to have efficient capital market, including: 

• Describe the behavioral

challenges in achieving efficiency. 

Discuss the three forms of market efficiency. What are the implications to corporate finance? Would you consider the real estate market an efficient capital market? Please explain why or why not.

I am having a little bit of difficulty understanding these bullet points and need help. Thank you.