Final answer:
To retrieve the pattern value of a t-shirt object in Python, use dot notation like this: 1) newStyle.pattern. This is the correct syntax for accessing object attributes.
Step-by-step explanation:
Maria is writing a program to design t-shirts and needs to retrieve the values for a t-shirt object's pattern. In Python, the correct way to access an attribute of an object is by using dot notation. Therefore, the correct answer is A - newStyle.pattern. This syntax means you are accessing the pattern attribute of the newStyle object. Options B, C, and D are not valid syntax for accessing an object's attribute in Python.