You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Question: Does Manche or Marigny have a higher population? Passage:In total, around four hundred dummies were planned to be dropped as part of the operation. Titanic I simulated the drop of an airborne division north of the Seine river; near Yvetot, Yerville, Doudeville in the Seine-Maritime region and Fauville in the Eure region. Two hundred dummies and two SAS teams were parachuted in across these four Titanic I targets. Titanic II would have involved dropping fifty dummies east of the Dives River to draw German reserves onto that side of the river. However, this segment of the operation was cancelled just before 6 June. A further fifty dummies were dropped, under Titanic III, in the Calvados region near Maltot and the woods to the north of Baron-sur-Odon to draw German reserves away to the west of Caen. Finally, Titanic IV involved two hundred dummies dropped near Marigny in the Manche, as with Titanic I the intention was to simulate the dropping of an airborne division. Two SAS teams were also dropped near Saint-Lo. This group commanded by Captain Fowles and Lieutenant Poole landed at 00:20 on 6 June 1944, 10 minutes ahead of schedule. To deceive the Germans into thinking there was a large parachute landing in progress, the SAS teams played 30 minute pre-recorded sounds of men shouting and weapons fire including mortars.
Links: a. Manche b. Eure c. Marigny, Manche d. Calvados (department)
Output:
a