Gauss wanted to establish contact with the Martians by ______.

A．may be inhabited by attractive Martians
B．may have some vegetable life
C．can have no life at all
D．may have both vegetable and animal life

A．angry when the government paid little attention to his ideas
B．pleased when the government did take notice of his plan
C．surprised that the officials were interested in his suggestion
D．disappointed at the lack of interest shown in his plan