Question

If A = {onion, pickles} and B = {onions, pickles, mustard, mayonnaise, lettuce}, what is A U B?
Answer
{onions, pickles, mustard, mayonnaise, lettuce}
{ }
{onions, pickles}
{mustard, mayonnaise, lettuce}

Answer 1

the first option

Answer 2

{onions, pickles, mustard, mayonnaise, lettuce}