47. A patient suffered from chronic low back pain with radiating to buttock, poster
lateral thigh and lateral aspect of lower leg. Muscle weakness was observed in the
extensor hallucis longus and tibialis anterior. Which lumbosacral root compression
is the most likely？
(A) L2 root compression
(B) L3 root compression
(C) L4 root compression
(D) L5 root compression
(E) S1 root compression
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