D Cause and Effect
A virus causes a cold and carelessness causes errors
Karma theory is based on Law of Karma, where an act or deed done by a human being, good or bad, accompany the dead soul and determine the soul's destiny in its future births. ... The position a soul occupies in the hierarchy of the caste system closely correlates to the accumulated deeds of the past.
Answer:
Travel (most likely) or trading
Explanation: