Nancy is _____ her new expensive car.a) over the moon aboutb) as right as rain aboutc) a bright sparkd) an arm and a leg

To determine the correct phrase that fits the sentence "Nancy is _____ her new expensive car," we need to analyze the options.

1. Option a: "over the moon about" - This phrase means extremely happy or delighted. This fits well as someone would likely be very pleased about a new expensive car.

2. Option b: "as right as rain about" - This phrase means to be perfectly fine or happy, but it is not typically used in the context of excitement about something new, making it less suitable here.

3. Option c: "a bright spark" - This phrase usually refers to someone who is clever or quick-witted, not related to feelings about possessions, making this option not relevant.

4. Option d: "an arm and a leg" - This phrase refers to something that is very expensive, but it does not indicate any emotional response. It is more about cost than feelings.

Final Answer

The best option is a) over the moon about, as it conveys that Nancy is very happy with her new expensive car.