[B] The law of the Jungle discourages the animals from hunting Man, which keeps them from being hunted themselves.
Explanation:
"The Law of the jungle, which never orders anything without a reason, forbids every beast to eat Man except when he is killing to show his children how to kill, and then he must hunt outside the hunting grounds of his pack or tribe."
The reason for this is that man-killing means, sooner or later, the arrival of white men on elephants, with guns, and hundreds of brown men with guns and rockets and torches. Then everybody in the jungle suffers."
The first passage explains that the law of the jungle forbids the animals from hunting man except when they are killing to show their children how to kill. The second passage explains why, and the reason is because killing humans will soon bring humans to the jungle who will kill the animals. "Then everybody in the jungle suffers".
Modernism is a period in literary history which started around the early 1900s and continued until the early 1940s. Modernist writers in general rebelled against clear-cut storytelling and formulaic verse from the 19th century.