Explanation:

- Can you detect between these two shades of green?

- "Detect" means to discover or identify something. This option doesn't fit well because we compare or notice differences rather than discover.

- Can you divert between these two shades of green?

- "Divert" means to change direction or focus. It’s used in contexts involving physical movement or shifting attention, not for comparing shades.

- Can you distract between these two shades of green?

- "Distract" means to divert attention. This option isn't relevant as it involves taking attention away, not comparing.

- Can you distinguish between these two shades of green?

- "Distinguish" means to recognize or treat as different. This is the correct action when trying to see or highlight differences between similar items.

Correct Answer: distinguish