In the anatomical position, what is the position of the thumbs and index fingers relative to the midline of the body?

I know this is a late response, but it's "The thumbs are lateral, while the index fingers are more medial".

Explanation:

It depends on how the persons hand is really but the thumb is more outwards awhile the index is straighter meaning closer to the mid-line.

if u need the answers look it up on google youll find it trust im just saying this incase no one out : )