Consider the following statements in respect of probiotics : 1. Probiotics are made of both bacteria and yeast. 2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut. 3. Probiotics help in the digestion of milk sugars. Which of the statements given above is/are correct ?

Option (c) is correct because probiotics are live microorganisms comprising both beneficial bacteria (e.g., *Lactobacillus*) and yeasts (e.g., *Saccharomyces boulardii*) that assist in digesting milk sugars like lactose. Statement 2 is incorrect because many probiotic strains are actually natural inhabitants of the human gut microbiome, not just external organisms found in food. This question tests the core concept of the human microbiome and the functional role of beneficial microbes in digestive health.