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: How many engines were on the plane that Creighton was aboard when he performed acts that led being awarded for gallantry? Passage:He served in the RAF during the war as a navigator on bomber aircraft. He was awarded the DFC for gallantry for saving the crew of his Halifax bomber over Hamburg. During the war he met Terence Rattigan who was then a wireless operator and air gunner. They appeared together in entertainment for fellow servicemen at RAF ground stations. After the war he completed a course at RADA and subsequently joined a company at Barnstaple in Devon. Shortly afterward he formed his own travelling company, the Sage Repertory Group, with 200 given to him by his mother and was joined by three other actors from Barnstaple. An advertisement in The Stage in 1949 offering actors no salary but a share of the profits was answered by John Osborne who joined the company in Ilfracombe. His company took their plays from village to village but enjoyed little success, they presented a summer residency at the Victoria Theatre on Hayling Island but this too was short-lived. Shortly after he collaborated on two plays with Osborne, the first Personal Enemy fell foul of the censors at the time, the second was An Epitaph for George Dillon.
Links: a. The Stage b. Ilfracombe c. Royal Air Force d. Handley Page Halifax
d