What are disadvantages for a company to go public by issuing equity in an initial public offering $($IPO$)?$

Question options:

a$)$

It reduces information asymmetry for competitors

b$)$

Class action lawsuits can occur following large stock price drops

c$)$

It can attract analyst following resulting in myopic decisions

d$)$

All of the above are disadvantages of an IPO

e$)$

None of the above are disadvantages of an IPO