The term 'POP CHOICES' can be broken down into two crossword solutions: COLAS (5 letters) and RCCOLAS (7 letters). COLAS stands for Carbonated Soft Drinks, which are a type of beverage that is carbonated and flavored with sugar or artificial sweeteners. RCCOLAS stands for Reduced Calorie Carbonated Soft Drinks, which are similar to regular COLAS but contain fewer calories. Both types of drinks are popular choices among consumers.