1. Objects and classes are primarily useful to implement what computing science principle in Python?

Select one:

a. Recursion

b. String formatting

c. Algorithmic complexity

d. Abstraction (hiding the implementation)

2. I want to store a different colour for each individual Die object, so that I can display that Die later with that colour. What must I add to my class?

Select one:

a. A new object called colour, instantiated as colour = Die('blue')

b. An additional __init__() method that takes colour as its only argument.

c. A comment above the class indicating what colour it should be.

d. An additional attribute called colour to the existing __init__() method.