Option (D) is correct because the big inch pipeline transports petroleum. Big Inch is the famous oil pipeline of U.S.A. It is the most convenient and commercial mode of transport of mineral oil and gas.

Option (A) is not correct because milk is transported from the farm to the processor in special stainless steel insulated tankers.

Option (B) is not correct because liquid petroleum gas can be transported in a number of ways by ship, rail, tanker trucks and pipelines.

Option (C) is not correct because water is transported by pipelines, canals and tunnels.