The paragraph argues that you need to feed not just your “intentional mind” but also your “habitual mind” if you want to accomplish something new, such as weight loss.
Option (d) completes the given paragraph best, as it continues the line of thought in the penultimate line of the paragraph. It gives an example to show how you can derail existing habits— by removing unhealthy cues, moving junk food out of the pantry—while also creating a window of opportunity to act on your new intentions—by putting fresh fruit out where it’s easy to see.
Options (a) and (c) give examples of how you can piggyback on an existing habit to act on your new intentions. This is a new idea, and does not match what is said in the penultimate line.
Option (b) is unrelated to the paragraph.
Correct Answer: Choice (D)