What is the maximum sum of the terms in the arithmetic progression 20, 18, 16, 14 ______ ?

A. 200
B. 210
C. 110
D. 100

20, 18, 16, 14, 12, 10, 8, 6, 4, 3, 2, 0
add all these numbers
C. 20 +18+16+14+12+10+8+6+4+2 =110

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