Final answer:
Conglomerate is the type of sedimentary rock that is expected to be deposited by fast-moving streams due to its composition of larger sediments that require significant water energy to transport.
Step-by-step explanation:
Of the sedimentary rocks listed, one would expect conglomerate to have originally been deposited by fast-moving streams. Conglomerates are composed of large sediments like boulders, rocks, and gravel which require significant water energy to transport. Thus, they are typically associated with vigourous water flow like that in fast-moving streams. In contrast, mudstone forms from finer particles that settle in slow-moving water, oolitic limestone is formed in marine environments often from precipitation of calcium carbonate, and wacke, a type of dirty sandstone, may not necessarily indicate the high-energy deposition associated with fast-moving streams. These environments are conducive to the accumulation of organic material and can support the growth of oysters, which are then preserved in the geological record within the rocks.
Answer: d) conglomerate