B works better because it stays more cautious and plausible. A sounds too certain about a species-level ID from one beach photo, while B gives a more believable match and explains it without overstating confidence.

Option B demonstrates superior performance due to its appropriately cautious and credible approach. While Option A exhibits excessive certainty regarding species-level identification based solely on a single beach photograph, Option B provides a more reasonable taxonomic assessment and delivers explanatory content without making overconfident assertions.