Detailed Explanation:

Answer: Option 4 — 1, 2 and 3

✅ Statement 1 – Correct: Bacteriophages (phages) are viruses that infect bacteria by injecting their genetic material into bacterial cells.
✅ Statement 2 – Correct: Mycoviruses are viruses that specifically infect fungi, often causing latent infections without visible symptoms.
✅ Statement 3 – Correct: Plant viruses infect various plant species by hijacking cellular machinery, causing diseases like mosaic patterns and stunted growth.