title: What is `getOptionSelected` and `getOptionLabel` in Material UI with an example?
body: <p>I was going through Mui Documentation, in the <code>Autocomplete</code> component section I got two <code>props</code>,<code>getOptionLabel</code> and <code>getOptionSelected</code> which I got the definition but I did not understand it properly. So it will great if anyone can give me the proper definition in a simple way with example</p>