The healthiest way to cope with grief among the options provided is:
It was pretty hard, but Kelly just listened when her Grandma kept talking about her Grandpa after he died.
Listening and providing support to someone who is grieving is a constructive and empathetic response. It allows for the expression of feelings and memories, which can be a crucial part of the healing process. The other options illustrate avoidance or withdrawal, which may not be conducive to healthy coping.