In 1802, when it seemed likely to many scholars that there was life on Mars, the German mathematician Karl Friedrich Gauss proposed that we signal the Martian inhabitants by drawing huge geometric patterns in the snows of Siberia. His plan was never carried out. If his plan had been carried out, which of the following would have been least reasonable regarding the pattern? a. The patterns should resemble natural formations.
b. They should indicate that they were created by an advanced civilization.
c. The patterns should consist of straight lines and right angles.
d. The patterns should indicate a knowledge of geometry.