The Difference Between Concentrative Meditation and Mindfulness Meditation Is That

The difference between concentrative meditation and mindfulness meditation is that

A) mindfulness meditation requires you to focus on mental images, whereas concentrative meditation requires you to concentrate on external objects.
B) mindfulness meditation involves listening to free-flowing thoughts without responding; concentrative meditation focuses attention on mental images or one particular thing.
C) concentrative meditation focuses the mind toward one thing; mindfulness meditation eliminates all thoughts during meditation.
D) concentrative meditation focuses the mind toward one thing; mindfulness meditation focuses on answering ongoing thoughts.