Final answer:
Under the H-1B visa, the spouse is not automatically able to work in the United States, but they can apply for an Employment Authorization Document (EAD) under the H-4 visa category.
Step-by-step explanation:
Under the H-1B visa, only the visa holder is allowed to work in the United States. The visa does not automatically grant work authorization to the spouse or dependents of the visa holder. However, there is a separate visa category called H-4 visa, which allows the spouse and unmarried children under 21 years old of the H-1B visa holder to accompany them to the United States.
Once in the United States under the H-4 visa, the spouse can apply for an Employment Authorization Document (EAD), which would allow them to work in the United States.
It is important to note that the ability for the spouse to work under the H-4 visa is contingent on the H-1B visa holder maintaining their own legal status and employment in the United States.