In the following questions a statement has been given with highlighted text. Select the options that can replace the text with correct idiom or phrase.

The new music system is too expensive for us to buy.

Costs an arm and a leg

The idiom that best replaces the highlighted text is "costs an arm and a leg". It means that something is very expensive.

The other options do not fit the context as well.

• Cut to the chase means to get to the point quickly and avoid wasting time.
• Hit the books means to start studying or researching something.
• At sea means to be confused or bewildered.