Related Clues:
- Opening of a kid's song
- Multiple choice list
- Start of a nursery school ditty
- Average school grades
- Semicircular letters
- What the ten longest answers have in common
- Undistinctive marks
- Multiple choice test options, often
- Some passing grades
- Starting quartet
- Alphabet opening
- Sequence sung like 'Twinkle twinkle'
- Sequence sung like "Twinkle twinkle"
- Puccini pair
- Chocolate chip cookie starters?