In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

Question: What is the highest elevation in the mountain range that candidates found difficult to traverse? Passage:During the 1780s and 1790s, German-speaking Lutherans began to move west from the original 13 states on the Atlantic coast into the portion of the old Northwest Territory formed 1787, that is now the future state of Ohio (and included territories north of the Ohio River, future states of Indiana, Illinois, Michigan, Wisconsin, and eastern Minnesota), with the numbers increasing after Ohio gained statehood in 1803. The Pennsylvania Ministerium sent two itinerant Lutheran pastors, Wilhelm Georg Forster and Johannes Stauch, to minister to the immigrants. By 1818 the Ministerim has sent another ten pastors, including Paul Henkel and John Michael Steck. These pastors began meeting together as the Ohio Conference of the Pennsylvania Ministerium, with the first convention on October 1719, 1812, in Washington County, Pennsylvania. and the last on September 2024, 1817, in New Philadelphia, Ohio. However, the Ohio Conference was not an independent synod, and so any candidates for the pastoral office were required to go to Pennsylvania for ordination. Most candidates found it difficult to make that trip across the Appalachian Mountains, so instead the Ohio Conference merely licensed them to preach. In order to remedy this, the conference asked for and received permission from the Pennsylvania Ministerium to form a new synod, and on September 14, 1818, in Somerset, Ohio, the General Council of the Evangelical Lutheran Preachers in Ohio and the Adjacent States () was organized.
Most candidates found it difficult to make that trip across the Appalachian Mountains, so instead the Ohio Conference merely licensed them to preach