Janet is a 30-year-old woman who has been recently diagnosed with a herniated disc at the level of L5-S1. She is currently in the emergency room with suspicion of cauda equina compression. Which of the following is a sign or symptom of cauda equina compression?
a. Gastrocnemius weakness
b. A reduced or absent ankle reflex
c. Numbness in the lateral foot
d. Paresthesia of the perineum and buttocks