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.

Example input: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
.
Example output: During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen.
Example explanation: The passage describes the 704th's actions during Operation Market Garden.
Q: Question: How old was First King Carol when the Romanian War of Independence began? Passage:The idea of a national cathedral first emerged following the Romanian War of Independence (18771878), which was mainly fought between the Russian and Ottoman Empires. The church was to symbolise the victory of Orthodox Christians over the Ottoman Muslims. The idea was shelved for lack of consensus on design, location and funding. The Unification of the Romanian Principalities in 1859, entailed a unitary organization of church structures in Moldavia and Wallachia within the Holy Synod (1872), thus the assembly of hierarchs increased to 12 members, including: the Primate Metropolitan (chairman), the Metropolitan of Moldavia and their suffragan bishops of Ramnic, Buzau, Arges, Roman, Husi and Lower Danube (Galati) and one auxiliary vicar-bishop for every diocese. The old Metropolitan Cathedral had proved overcrowded, especially during the national holidays, such as the Proclamation of the Kingdom of Romania and the crowning of the First King Carol I (10 May 1881), when none of the over one hundred churches in Bucharest were able to receive those who would have wanted to participate in the official service. Therefore, at King Carol I's desire, Romania's Assembly of Deputies and the Senate voted in favour of the Law no.1750 on the construction of the Cathedral Church in Bucharest, promulgated by King Carol I on 5 June 1884.

A:
The idea of a national cathedral first emerged following the Romanian War of Independence (18771878), which was mainly fought between the Russian and Ottoman Empires