Which sentence best expresses the central point of the selection?

A、AlthoughPaulLoganwasatargetofotherstudent’sabusewhenhewasayoungboy,theirattacksstoppedashegrewtallerandstronger.;
B、WhenLoganmovedtoadifferentschool,hediscoveredthatanotherstudent,George,wasthetargetofmorebullyingthanhewas.;
C、Logan’sexperienceofbeingbulliedandhisshameathowhetreatedGeorgeeventuallymadehimspeakupforsomeoneelsewhowasteased.;
D、LoganisashamedthathedidnotstandupforGeorgewhenGeorgewasbeingattackedbyabullyontheplayground.