The Observation That Began the 19th and Early 20th Century

Multiple Choice

The observation that began the 19th and early 20th century fascination with Mars as a place for life was:

A) the discovery of the Martian moons
B) Schiaparelli's seeing what seemed to him to be long straight features on the red planet
C) Percival Lowell's discovery of an entire network of artificial canals built by martians
D) the images sent back by the Viking spacecraft mission
E) the landing of Martian spacecraft in New Jersey in 1938