Bunuel
People cannot devote themselves to the study of natural processes unless they have leisure, and people have leisure when resources are plentiful, not when resources are scarce. Although some anthropologists claim that agriculture, the cultivation of crops, actually began under conditions of drought and hunger, the early societies that domesticated plants must first have discovered how the plants they cultivated reproduced themselves and grew to maturity. These complex discoveries were the result of the active study of natural processes.
The argument is structured to lead to the conclusion that
(A) whenever a society has plentiful resources, some members of that society devote themselves to the study of natural processes
(B) plants cannot be cultivated by someone lacking theoretical knowledge of the principles of plant generation and grew
(C) agriculture first began in societies that at some time in their history had plentiful resources
(D) early agricultural societies knew more about the natural sciences than did early nonagricultural societies
(E) early societies could have discovered by accident how the plants they cultivated reproduced and grew
Premises:Leisure is necessary for studying natural processes.
If and only if resources are plenty, do people have leisure.
Some say agriculture began under conditions of drought and hunger (so that time was not leisure time)
But early societies that domesticated plants must have actively studied natural processes.
Hence it seems that the author is trying to say that it is likely that agriculture began under better conditions, not under drought and hunger conditions. That a society with plentiful resources had the time to study natural processes and hence started agriculture. Hence option (C) is the conclusion of the argument.
(C) agriculture first began in societies that at some time in their history had plentiful resources
(B) plants cannot be cultivated by someone lacking theoretical knowledge of the principles of plant generation and grewWe can say that this is given to us. It is not the conclusion the author is leading towards. The argument tells us that the early societies that domesticated plants must first have discovered how the plants they cultivated reproduced themselves and grew to maturity. So plants cannot be cultivated by someone lacking this knowledge.
Also, think about it this way - if this were the author's conclusion, why did the author give all that extra content about leisure, resources plentiful, agriculture began under drought and hunger etc. All that ha son significance then.
Answer (C)