If the risk-free return is 4.4 % and the average A-share yield is 12.4%, what is the expected return on these three stocks? ( )
security
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Investment weight
Shanghai Pudong   Development Bank (600000)
1.22
25%
Handan Iron and steel   (600001)
0.83
30%
ST Northeast High（600003）
1.06
45%
A、8.00%
B、11.24%
C、12.65%
D、14.25%