Final answer:
True. Jim and Harry, along with their adopted children Micah and Sarah, can be considered a nuclear family.
Step-by-step explanation:
A nuclear family refers to a household that consists of a married couple and their children as the core of the group. While the traditional nuclear family model includes a husband, a wife, and children, the definition has evolved to include variations such as single parents, unmarried parents, and homosexual couples. In the case of Jim and Harry, who are the parents of two adopted children Micah and Sarah, they can indeed be considered a nuclear family.
Hence, the statement is true.