Victoria enjoys laughing with her friends as they walk around the track after school. which best describes their heart during this activity?

The option that best describes their heart rates during this activity is A. low. They aren't doing much at that particluar moment - they are just walking around, talking and laughing. There isn't much there to rise their blood pressure and thus heart rate, which remains low. Moderate, vigorous, and dangerous heart rates would require much more vigorous activities.

Breastfeeding should last for 12 months.