Which of the following correctly declares an array in C?

In C programming, declaring an array involves specifying the data type of the elements it will hold, followed by the name of the array and the size of the array within square brackets. The declaration "int anarray[10];" correctly follows this syntax, indicating that "anarray" is an array of integers with a capacity to hold 10 elements. This adheres to the language's rules for array declaration, making the first option the correct choice.

Other options fail to follow the necessary syntax for array declaration in C. For example, simply declaring "int anarray;" defines a variable of type int, not an array. The syntax "anarray{10};" is incorrectly using curly braces instead of square brackets, which is not the valid method for declaring an array size in C. Lastly, "array anarray[10];" introduces a nonexistent type "array," which is not recognized in C, further illustrating incorrect usage. Thus, the first choice stands as the proper method for declaring an integer array in C.