Consider the following statements : 1. Biofilms can form on medical implants within human tissues. 2. Biofilms can form on food and food processing surfaces. 3. Biofilms can exhibit antibiotic resistance. Which of the statements given above are correct?

1. Statement 1: Biofilms are communities of microorganisms that adhere to surfaces. They are known to readily form on medical implants (like catheters, artificial joints, heart valves) inserted within human tissues, often leading to persistent infections. This statement is correct. 2. Statement 2: Biofilms can also form on various surfaces in the food industry, including food products themselves and food processing surfaces (like pipes, tanks, cutting boards). This can lead to contamination and spoilage. This statement is correct. 3. Statement 3: Bacteria within biofilms are often protected by the extracellular matrix they produce and can enter altered physiological states. These factors contribute to significantly increased antibiotic resistance compared to their free-floating counterparts, making biofilm-related infections difficult to treat. This statement is correct. 4. Since all three statements are correct, the correct option is (D).