Why are diabetics at risk for wound infections by anaerobic bacteria like Clostridium perfringens?
a. C. perfringens can use the excess blood glucose found in diabetic patients to its metabolic advantage
b. C. perfringens colonizes unhealthy tissues that do not receive enough oxygen, and diabetics have difficulty transporting oxygen to body tissues, especially in the extremities
c. C. perfringens leaches oxygen from the blood while traveling to infect body extremities
d. C. perfringens prefers environments where ketone byproducts of metabolism are readily available
