CLAD 03-31

What is the result of the following Array addition?

1. A 1-D Array of {80, 20, 40, 10, -60}
2. A 1-D Array of {120, 30, -60}}
3. A 1-D Array of {120, 30}
4. A 2-D Array of {{120, 90, 20}, {60, 30, -40}}