Answer:
Option A
$2 total, is a reasonable tip for a valet attendant.
Step-by-step explanation:
Tipping too much is not very wise, and tipping too little is not very nice.
There are no rules for giving tips, after all, they are tips.
It is important though, to know how both parties involved can smile at the end of the day, we are all human beings with bills to pay, right?
Giving below $1 is in an actual sense too little for a tip, and giving above $5 is too much. An average tip for valet services is between $2 and $5.
So, of the options you gave, $2 is the most suitable.