Questions: Raw or undercooked beef is one of the most common causes of A E. Coli B all of these are correct c Shigella D Salmonella Typhi

The answer is B: all of these are correct.

Explanation for each option:

• A: E. Coli - Raw or undercooked beef can be contaminated with E. Coli, which can cause severe foodborne illness.
• B: all of these are correct - This option suggests that raw or undercooked beef can cause all the listed infections, which is accurate.
• C: Shigella - Although less common than E. Coli, Shigella can also be transmitted through contaminated food, including beef.
• D: Salmonella Typhi - While more commonly associated with poultry and eggs, Salmonella Typhi can also be found in contaminated beef.

Therefore, the most comprehensive and correct answer is B: all of these are correct.