This is a question with answer options. Goal: How to produce simple blonde highlights in your hair?

Which of the following methods is more reasonable for accomplishing this goal?

Available options: (I) Slice a lemon in slices and secure the slice in your hair and let it dry in the sun, remove the slice, repeat as needed (II) Slice a lemon in half and run the ends of your hair through the lemon in juice and let it dry in the sun, repeat as needed...I think the answer is
(II)