Rows are those lines that we see in the form of continuous cells side by side horizontally. While the columns are the cells that cut the rows vertically.
An example of this can be an excel file. The rows will be horizontal, and the columns will be vertical.
Given this information we can say that the correct answer is row.
What happens when a property on an element has no value supplied is governed by style inheritance. A property should inherit its value from its parent element, according to this specification.
