A 70-year-old male presents to clinic with complaints of chronic low back pain. He states that he is having difficulty completing his activities of daily living due to the pain. He describes the pain as dull and rates it a 5/10 at worst. He says that occasionally he experiences sharp, shocks of pain that go down his left leg. Vital signs are within normal limits. Physical examination reveals mild tenderness to palpation along the lumbar paraspinal musculature bilaterally. A straight leg raise reproduces the patient’s radiating leg pain. Which of the following vertebral disc spaces is the likely origination of this patient’s symptoms?