Final answer:
A high ratio grid will absorb more scattered radiation and more primary radiation compared to a low ratio grid, which results in better image quality, but it also allows less centering latitude.
Step-by-step explanation:
Compared to a low ratio grid, a high ratio grid will absorb more scattered radiation and also absorb more primary radiation, but does allow for more centering latitude. The correct answer is option C (1 and 2 only). A high ratio grid is designed with thinner and denser grid lines, which increases the grid's ability to distinguish between primary and scattered radiation. This helps improve image quality by reducing the amount of scatter that reaches the image receptor. However, this also means that there's less room for error with centering the beam, as the grid will cut off more primary radiation if not perfectly aligned. Centering latitude is narrower with high ratio grids.