You should send a Carbon Copy to your manger. You would type your manager's email into the slot next to cc.
C. is the answer to that question
You will use a <select> for this. For example:
<select name="choice">
<option>First</option>
<option>Second</option>
<option>Third</option>
<option>Fourth</option>
<option>Fifth</option>
</select>
