thE inComplEtE tABlE ABovE shows A DistriBution oF sCorEs For A ClAss oF 25 stuDEnts. iF thE AvErAgE (ArithmEtiC mEAn) sCorE For thE ClAss is 83, whAt sCorE is missing From thE tABlE

sCorE	numBEr oF stuDEnts
92	4
91	6
	3
83	7
71	5

A、75
B、77
C、81
D、84
E、86