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The manager of a horse show is placing seven obstacles-one chicken coop, one gate, two stone walls, and three fences-on a jumping course that consists of seven positions, numbered and arranged consecutively from 1 to 7. The placement of the obstacles in the seven positions must conform to the following conditions: No two fences can be placed in consecutive positions.The stone walls must be placed in consecutive positions. 1. Which of the following is an acceptable placement of obstacles in the seven positions,in order from the first position to the last position on the course? Chicken coop, fence, gate, stone wall, fence,stone wall, fence Fence, gate, fence, fence, chicken coop,stone wall, stone wall Fence, stone wall, stone wall, gate, chickencoop, fence, fence Gate, stone wall, stone wall, fence, fence,chicken coop, fence Stone wall, stone wall, fence, chicken coop,fence, gate, fence 2. If one of the fences is in the third position and another is in the sixth position, which of the following must be true? The chicken coop is in the seventh position. The gate is in the second position. The gate is in the seventh position. One of the stone walls is in the first position. | 
