Given below are four sentences in jumbled order. Pick the option that gives their correct order.
A. Some of these substances may be added to increase the weight of food-stuffs and may not be injurious to health.
B. They are often imperceptible but can have far-reaching effects.
C. The evil effects of adulteration of food on our health are often slow in their onset and may go un-noticed.
D. The danger obviously depends upon the substances added to adulterate food.