Which two statements are syntax rules for writing a JSON array?

The choice stating that each value in the array is separated by a comma and that values are enclosed in square brackets accurately describes the syntax of a JSON array. In JSON (JavaScript Object Notation), arrays are utilized to hold ordered collections of values. These values can be of various data types, including strings, numbers, objects, arrays, booleans, or null.

In a correctly formatted JSON array, multiple values are indeed separated by commas to indicate individual items within the collection, and the entire array is encapsulated within square brackets. This syntax makes it clear to both humans and machines how to interpret the data structure.

The other options do not conform to JSON syntax rules. For instance, the use of semicolons and braces in the first choice is not applicable to arrays, as braces are typically used for JSON objects—not arrays. Similarly, parentheses and the requirement for keys in the third and fourth choices reflect characteristics of JSON objects rather than arrays. Additionally, keys in JSON must be unique within an object, but JSON arrays do not utilize key-value pairs in the same manner. This understanding is crucial for correctly working with JSON data structures in programming and data interchange scenarios.