Please answer the following question: Information: - A boxcab, in railroad terminology, is a locomotive in which the machinery and crew areas are enclosed in a box-like superstructure (from boxcar). It is a term mostly used in North America while in Victoria (Australia), such locomotives have been nicknamed "butterboxes" (Victorian Railways second series "E" Class electric locomotives numbered E1102 to E1111). Boxcabs may use any source of power but most are diesel or electric locomotives. Few steam locomotives are so described but the British SR Leader class was a possible exception. Most American boxcabs date from before World War II, when the earliest boxcabs were often termed "oil-electrics" to avoid the use of the German name "Diesel". - World WarII (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World WarII the deadliest conflict in human history. - The Leader was a class of experimental 0-6-0+0-6-0 articulated steam locomotive, produced in the United Kingdom to the design of the innovative engineer Oliver Bulleid. The Leader was an attempt to extend the life of steam traction by eliminating many of the operational drawbacks associated with existing steam locomotives. It was intended as a replacement for the ageing fleet of M7 class tank engines still in operation on the Southern Railway (SR). Design work began in 1946 and development continued after the nationalisation of the railways in 1948, under the auspices of British Railways (BR). - Frederick Methvan Whyte (March 2, 1865 1941) was a mechanical engineer of Dutch background who worked for the New York Central in the United States. He is most widely known as the person who developed Whyte notation to describe the different wheel arrangements of steam locomotives in 1900. - The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in "American Engineer and Railroad Journal". The notation counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, groups of numbers being separated by dashes. Other classification schemes, like UIC classification and the French, Turkish and Swiss systems for steam locomotives, count axles rather than wheels. - The Pennsylvania Railroad 's class O1 comprised eight experimental boxcab electric locomotives built in 1930 and 1931 . They were built in preparation for the New York to Washington Electrification project . They had the wheel arrangement classified as 4 - 4 - 4 in the Whyte notation ( UIC : 2 ' B2 ' ; AAR : 2 - B - 2 ) . Although successful , they were not powerful enough for the railroad 's increasingly heavy trains . For production , the PRR chose to concentrate on the P5 class , effectively an enlarged and more powerful version of the O1 with an additional pair of driving wheels . The eight locomotives were divided into four sub-classes -- O1 , O1a , O1b , and O1c . Each sub-class was fitted with a different combination of traction motor power output and drive gear ratio . In addition , three O1 locomotives were fitted with General Electric equipment , three with Westinghouse , and two with Brown Boveri . The O1b locomotives used a Buchli drive system to link the traction motors to the driving wheels . They were generally employed in pairs by sub-class , generally on short - distance passenger trains between Newark , New Jersey and New York City 's Pennsylvania Station . During World War II they were used on the '' Susquehannock '' between Harrisburg , Pennsylvania and New York City . Later in life , they were used for transfer work around Penn Station and Sunnyside Yard , mostly hauling empty passenger stock . They were all out of service and scrapped by the mid 1960s . - The Victorian Railways operated in the Australian state of Victoria from 1859 to 1983. The first railways in Victoria were private companies, but when these companies failed or defaulted, the Victorian Railways was established to take over their operations. Most of the lines operated by the Victorian Railways were of , however the railways also operated up to five narrow gauge lines between 1898 and 1962, and a line between Albury and Melbourne from 1961. - Under the Whyte notation for the classification of steam locomotives, 4-4-4 represents the wheel arrangement of four leading wheels on two axles, four powered and coupled driving wheels on two axles, and four trailing wheels on two axles. In the United States, this arrangement was named the "Reading" type, since the Philadelphia and Reading Railroad was the first to use it. In Canada, this type is known as the "Jubilee". After reading the paragraphs above, we are interested in knowing the entity with which 'prr o1' exhibits the relationship of 'service retirement'. Find the answer from the choices below. Choices: - 1865 - 1898 - 1900 - 1939 - 1941 - 1945 - 1946 - 1948 - 1961 - 1962 - 1983
A:
1961