Under the U.S. Aids to Navigation System on the Western Rivers, passing daymarks on the right descending bank are __________.

Correct Answer: Option A — green square-shaped panels with green reflector borders

Under the Western Rivers system, passing daymarks on the right descending bank are red triangles, while those on the left descending bank are green squares. These marks provide lateral guidance to vessels descending the river, ensuring they remain within the designated channel by following the correct bank markers.