Along the major rivers that traverse the deserts of northeast Africa, the Middle East, and northwest India, the combination of a reliable supply of water and good growing conditions both encouraged farming traditions that, in places, endure in at least 6,000 years.

(A) good growing conditions both encouraged farming traditions that, in places, endure in

(B) good growing conditions encouraged farming traditions that have, in places, endured for

(C) of good growing conditions have encouraged farming traditions that, in places, endured for

(D) of good growing conditions both encouraged farming traditions that have, in places, endured

(E) of good growing conditions encouraged farming traditions that have, in places, been enduring for