Final answer:
The sandstone in the photo was most likely deposited in a `desert sand dunes` environment.
The answer is option ⇒b
Step-by-step explanation:
The presence of large-scale cross-bedding and very well-rounded sand grains in the sandstone is indicative of sand dunes. Sand dunes are formed by wind action in desert environments where sand grains are transported and deposited in distinct cross-bedded layers.
In summary, the presence of large-scale cross-bedding, well-rounded sand grains, and the absence of water-related sedimentary structures strongly suggest that the sandstone in the photo was deposited in a desert sand dunes environment. This conclusion is based on the characteristic features and processes associated with sand dune formation.
The answer is option ⇒b) desert sand dunes