Final answer:
During America's first copyright laws, publications included various forms, but political pamphlets and the reprinting of European works were significant focuses. The expansion of the consumer revolution and the shared tastes across the Atlantic contributed to this trend.
Step-by-step explanation:
At the time of America's first copyright laws, the focus of publications in America was quite varied, though not as heavily concentrated in certain areas as it later became. Before the 1680s, there were no newspapers in colonial America, but the eighteenth century saw a surge in printed materials, including journals, books, pamphlets, and other publications. While the available historical context discusses a variety of written forms ranging from early manuscript authors sharing works in scribal circles to the later growth of American literary culture alongside British imports, the options provided in the question seem to suggest the choices are more limited.
With that in mind, and considering the growth in journals and political engagement of the time, political pamphlets were indeed one significant focus of publication during the early period of American copyright. Moreover, the reprinting of European books was also prevalent due to the appetite for British literature, indicating that option d) Reprinting European books is a strong contender. As the question asks which one of these was the focus, and the information provided does not definitively support one over the other, it would be reasonable to infer that both c) Political pamphlets and d) Reprinting European books were significant focuses of early American publications.