Brent recently received funding for his fast$-$food chain in Michigan. As a result, he hires Angela to set up a top$-$level domain so that she can start an online delivery system through his web portal as well. He wants Angela to put a unique domain name so that his website appears a little different from the other competitors. Analyze which of the following top level domain names Angela should opt for under such requirements.

a$..$com

b$..$biz

c$..$mil

d$..$eu