Q: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Question: Which railway company that had control of the Carluke railway station is the oldest? Passage:The first station to be named Carluke was a separate station near Bogside Farm, originally opened as Stirling Road station in 1845 by the Wishaw and Coltness Railway. The current station opened as part of the Caledonian Railway Main Line extension from Beattock on 15 February 1848. It was rebuilt by the Caledonian Railway around the start of the 20th century. It passed to the control of the London, Midland and Scottish Railway (LMS) upon its formation on 1 January 1923 under the terms of the Railways Act 1921 until the nationalisation of the "Big Four" on 1 January 1948 and the resultant creation of British Railways. Thereafter, control of the station, in common with all of those on the WCML north of Gretna, became the responsibility of BR's Scottish Region until the formation of the Greater Glasgow Passenger Transport Executive (GGPTE) on 1 June 1973. Under the terms of the Transport Act 1968, the specification of timetables, fares and quality standards for all rail services within the erstwhile Strathclyde region became the responsibility of the PTE, with trains and stations receiving their distinctive corporate colour scheme from 1985. However, in November 2005, these powers were transferred to the Scottish Executive and were subsequently passed to Transport Scotland upon its creation on 1 January 2006. Consequently, both the station and the rail services which call thereat are today operated by ScotRail.

A:
b