Q789897 - Aeronáutica - 2016 - EEAR - Sargento - Controle de Tráfego Aéreo

Read the article and answer question.

According to the article, all the sentences are correct, except:

a) Nowadays a new version of the U2 is operated as a spy plane.
b) The US Air Force built a secret area to work on the U2.
c) During the Cold War, the U2 was used as a spy plane.
d) The U2 could identify objects on the ground.