What is a key influence in the development of the Carolingian script?

The development of the Carolingian script was significantly influenced by several factors, making the choice of "All of the above" the most accurate. Each of the influences listed contributed to the evolution of this important script during the Carolingian Renaissance.

Roman cursive traditions played a pivotal role as they provided a practical basis for handwriting, emphasizing clarity and legibility. The simplifications in letterforms from Roman cursive scripts helped shape the more standardized letters of the Carolingian script.

Greek minuscule letters also had an impact, as the characteristics of these letters contributed to the overall aesthetic and formality of Carolingian script. The melding of the legibility found in Greek script with the existing Latin influences helped create a clearer and more refined writing style.

Celtic illuminated manuscripts, known for their intricate designs and knotwork, influenced the decorative aspects of the script. While the relationship may be more stylistic than functional, the artistry found in these manuscripts did contribute to the visual development of calligraphy during this period, leading to the creation of more ornamented texts.

Given that the Carolingian script was a product of combining elements from these diverse influences — Roman cursive for legibility, Greek minuscule for form, and Celtic artistry —