One of the most prominent features of any Greek building is its . a. entryways b. roof c. columns***d. scale

To arrive at this answer, we can start by analyzing the given options: a. entryways, b. roof, c. columns, and d. scale.

One way to determine the most prominent feature of Greek buildings is to consider their architectural style and design. Greek architecture is famously characterized by the use of columns, which were integral to their building structure.

Columns were not only functional but also served as decorative elements. They provided support for the roof and distributed the weight of the building evenly. They also contributed to the overall aesthetic appeal of Greek buildings, giving them a sense of grandeur and elegance.

In comparison, while entryways and roofs are essential components of any building, they do not hold the same prominent status as columns in Greek architecture. Scale, on the other hand, refers to the size or proportion of a building and is not a distinct feature of Greek architecture.

Therefore, based on the architectural significance and prominence, the correct answer is c. columns.