Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: How many of the 105C helicopter did the Philippine Navy operate? Passage:The Andrés Bonifacio-class frigates were passed to the Philippine Navy with fewer weapons aboard than they had had during their U.S. Navy and U.S. Coast guard careers and with old surface search radars installed. The Philippine Navy addressed these shortfalls through modernization programs. In Philippine service, Diego Silang retained her South Vietnamese armament, consisting of a single Mark 12 5"/38 caliber (127-mm) gun, a dual-purpose weapon capable of anti-surface and anti-air fire, mounted in a Mark 30 Mod 0 enclosed base ring with a range of up to yards; two twin Mark 1 Bofors 40mm anti-aircraft gun mounts, four Mk. 4 single 20-millimeter Oerlikon anti-aircraft gun mounts, four M2 Browning .50-caliber (12.7-millimeter) general-purpose machine guns, and two 81-mm mortars. However, in 1979 Hatch and Kirk, Inc., added a helicopter deck aft which could accommodate a Philippine Navy MBB Bo 105C helicopter for utility, scouting, and maritime patrol purposes, although the ship had no capability to refuel or otherwise support visiting helicopters. The Sperry SPS-53 surface search and navigation radar also was installed, replacing the AN/SPS-23 radar, although the ship retained both its AN/SPS-29D air search radar and its Mark 26 Mod 1 Fire Control Radar System. The Philippine Navy made plans to equip Diego Silang and her sister ships with new radar systems and long-range BGM-84 Harpoon anti-ship cruise missiles, but this upgrade did not materialize due to the worsening political and economic crisis in the Philippines in the mid-1980s.


b