In this question, we are asked to find the difference in length between a track distance of 100 meters and 100 yards.

Option 1 suggests a difference of 0.856 meters, which is too small.

Option 3 suggests an even smaller difference of 0.0856 meters, which is far from accurate.

Option 4 suggests a difference of 1.0 meter, which is still not quite right.

Option 2 suggests a difference of 8.56 meters. Considering that 1 yard is approximately equal to 0.9144 meters, we can deduce that 100 yards would be roughly equal to 91.44 meters. Subtracting 91.44 meters from 100 meters gives a difference of approximately 8.56 meters. This makes Option 2 the correct answer. It properly accounts for the difference in length between 100 meters and 100 yards.