Step 1: Understand yogurt production.
Yogurt is produced through the fermentation of milk by bacteria such as Lactobacillus bulgaricus and Streptococcus thermophilus.
Step 2: Analyze the options.
Yogurt is a product of fermentation where bacteria convert lactose into lactic acid, which gives yogurt its texture and sour taste.
Pasteurized products are heated to kill bacteria, but yogurt is fermented.
Yogurt is not a dehydrated or distillation product. Conclusion: The correct answer is (A) Fermentation product.