The healthiest way to cope with grief among the options provided is:
**D. It was pretty hard, but Kelly just listened when her grandma kept talking about her grandpa after he died.**
This response demonstrates active listening and emotional support, which can be very helpful for processing grief. Engaging in conversations about the deceased can facilitate healing and help individuals express their feelings.
The other options involve avoidance or isolating behavior, which are generally not constructive ways to cope with grief.