Andy intends to register his own domain name on the Internet for a minimal cost per year. Before he selects and registers a domain name, he should make sure it represents his business. Also, he should brainstorm and make a list of the top five keywords or phrases that best describe his business. Andy runs an event management business for weddings and birthdays. Which of the following top-level domains should he use:

a. .gov
b. .co
c. .mil
d. .edu