When Bob and Ellen have their first child, which rider would they likely purchase to cover the baby and increase Ellen's coverage?

The most suitable choice for Bob and Ellen in this situation is the family term rider. This rider typically provides coverage not only for the spouse but also extends to cover children, which would be an optimal way for them to ensure that both Ellen and their newborn are protected under a single policy.

The family term rider is particularly beneficial for couples expecting a child, as it simplifies the process of securing insurance for the family while often being more cost-effective compared to purchasing separate policies for each family member. This rider can typically cover all their children, which adds peace of mind during a time when family health and financial security might be a priority.

The other options offer varying benefits, but they do not provide the same comprehensive coverage that the family term rider does. The spouse/other insured term rider would only increase Ellen's coverage without covering the child. The children's term rider focuses solely on the children but does not enhance Ellen's existing coverage. Lastly, the living benefits rider provides specific benefits related to critical illness or long-term care instead of general life coverage for family members. Therefore, the family term rider stands out as the most fitting choice for their needs at this moment.