When setting a two-dimensional character array, how is the size (number of characters) in the second dimension set?

Select an answer:

• The second dimension is equal to the number of strings, plus one.
• To the length of the longest string, plus one for the null character.
• The number of elements are equal to the average size of all the strings.
• To the length of the longest string; you don't need to add one because the first array element is zero.