12. Assume double[1] x = new double[8][4], what are x[2].length, and x.length ? * (2 points) 8 and 4 32 and 8 4 and 4 4 and 8 8 and 8 32 and 4 13. Given the following code class A1 O class A2 extends A1 {} class A3 extends A2 { } class A4 extends A3 { class A5 extends A4{ } A1 01 = new A1(); A2 02 = new A2: A3 03 = new AB(); A4 04 = new A40, A5 05 = new A50); This type of inheritance is called? * (2 Points) hierarchical inheritance multiple inheritance Multilevel inheritance Single inheritance hybrid inheritance