It's good to want to show someone you appreciate them.
Ann finally got a good paying job, and she knows her mom is responsible for her being in this position.
Ann wants to decide whether to buy her mom something.
Ann buys her mom a new electric car so that it lasts a long time.
Ann wants to save her money, so she decides not to buy any gifts.
Ann's mom figures out how grateful Ann is for her.
Ann's mom is not made aware of how grateful Ann is for her.