What are the dimensions of the interior adult metal casket?

The dimensions of an interior adult metal casket, which are typically standardized within the funeral industry, align best with the selected answer.

The measurements in the correct choice indicate a length of 78 inches, a width of 23 inches, and a height ranging from 16 to 22 inches. These dimensions are designed to accommodate the average adult body comfortably while allowing for some variation due to the specific design and style of the casket.

In terms of industry standards, adult caskets generally fall within a specific range of dimensions to ensure they can hold an average adult's size. The length and width provided in the chosen answer reflect these common specifications, which are consistent across most manufacturers to ensure compatibility for burials, entombments, or cremation processes.

Other options present dimensions that either exceed or fall short of the typical standards for adult metal casket interiors, making them less suitable choices. The variation in height across several options does not detract from the fact that the selected answer best reflects the typical dimensions used in practice for adult caskets, reinforcing its appropriateness for the question asked.