Final answer:
The statement will evaluate if the turtle's pen color is 'green' and return True if it is.
Step-by-step explanation:
The given statement checks whether the turtle's pen color is 'green'. To compare the pen color with 'green' in Python, we use double equal signs (==) instead of a single equal sign (=), which is used for assignment. Therefore, the correct statement should be:
if turtle.pencolor() == 'green'
If the turtle's pen color is 'green', the condition will evaluate to true, so the answer is option a) True.