Which of the following statements creates a multidimensional array with 3 rows, where the first row contains 1 element, the second row contains 4 elements and the final row contains 2 elements?
a. int[][] items = { { 1, null, null, null }, { 2, 3, 4, 5 }, { 6, 7, null, null } };.
b. int[][] items = { { 1 }, { 2, 3, 4, 5 }, { 6, 7 } };.
c. int[][] items = { { 1 }, { 2, 3, 4, 5 }, { 6, 7 }, {} );.
d. int[][] items = { { 1 }, { 4 }, { 2 } };