Angelo and his wife just had their last child move out of the house. He and his wife had lived vicariously through their children, letting their sports activities and various achievements dominate their lives. Now they may experience , which includes a declines in marital satisfaction.

the empty nest syndrome

Explanation:

The empty nest syndrome is the sad and lonely feeling or emotion developed by parent when all their children move out of the house to live on their own. This condition is associated with feeling of emptiness overwhelming sadness, anxiety and loss with symptoms of frustration, emotional distress and guilt. At this stage parent finds something (such as sports, drug, activities etc ) to fill the vacuum left behind by their children

In this question Angelo and his wife resulted into letting their sports activities and various achievements dominate their lives to fill up the hole their last child who moved out of the house left behind

it should be d or b but i'm sure it's d