以下哪个算式对()。i=10%,求A=?
A.A=1000(P/F,10%,10)(A/P,10%,7)+2000(P/F,10%,13)(A/P,10%,7)
B.A=1000(P/F,10%,10)(A/P,10%,8)+2000(P/F,10%,13)(A/P,10%,8)
C.A=1000(P/F,10%,10)(A/P,10%,7)+2000(P/F,10%,5)(A/F,10%,7)
D.A=1000(P/F,10%,10)(A/P,10%,7)+2000(P/F,10%,5)(A/P,10%,7)