Question: What was concluded about the construction?

Is "The chief engineer of the Sichuan Geology and Mineral Bureau said that the sudden shift of a huge quantity of water into the region could have relaxed the tension between the two sides of the fault, allowing them to move apart, and could have increased the direct pressure on it, causing a violent rupture." the correct answer?
Pick from:
(A). yes;
(B). no;
(A).