WITH WHAT TOPIC IS THE PASSAGE MAINLY CONCERNED

35. - DE THI THU THPT MOONVN CUA CO MAI PHUONG CO DAP AN BAN WORD DE 2
DE THI THU THPT MOONVN CUA CO MAI PHUONG CO DAP AN BAN WORD DE 2
35. With what topic is the passage mainly concerned? A. Neurosurgery B. Human memory C. Dr. Wilder Penfield D. Chemicalreactions