48 year-old male complaining of lower back pain with morning stiffness for 30 minutes only. On exam he was having spasm centrally on the lower back

48 year-old male complaining of lower back pain with morning stiffness for 30 minutes only. On exam he was having spasm centrally on the lower back. What is the appropriate management :
a) Epidural steroids injection
b) Back brace
c) Facet lysis
d) Physiotherapy.