Respuesta :
The correct answer is the second option.
It's easy to tell a waltz from another type of music; waltzes are always in three-quarter time.
It's easy to tell a waltz from another type of music; waltzes are always in three-quarter time.
I would go with the second one because one way to tell if someone is doing the waltz is like a cube dancing and sometimes a type of line dancing. I hope that I helped you.