The author of this passage is______.

A．offers a comprehensive explanation of the universe
B．proves the existence of a ruling intelligence
C．incorporates the work of men of genius
D．makes scientific theorizing easier to understand

A．the first two phases of the wildlife conservation movement failed
B．the new laws made certain animals increase too rapidly
C．there was not enough room for wild creatures to increase
D．the excessive growth of certain animals caused their starvation