So it was that on the twenty-ninth day of february, at the beginning of the thaw, this singular person fell out of infinity into iping village. in this first sentence from the passage, the author uses the words fell out of infinity
a) to demonstrate how dangerous the snow was as it began to thaw.
b) to show that the stranger stumbled as he arrived in the village.
c) to show that the stranger just appeared in the village seemingly without a purpose.
d) to explain that the stranger arrived that day without his luggage or any other possessions.

Walking is not the most exciting form of exercise a person can take on for fitness. yet it is low impact and requires no fancy equipment. that makes walking a simple activity for those new to exercise. walking is less likely than other exercises to cause injury to leg tendons and muscles. all it requires is a good pair of sneakers-no cables, stylish outfits, or weights required. of course, a person could increase the benefit of a workout by adding weights or speed walking. identify the main idea of this paragraph. walking is a difficult and safe exercise for beginners. walking is an easy and safe exercise for beginners. walking is a boring and dangerous form of exercise. walking is an exciting and very effective form of exercise.