Reducing the clearance between a valve stem and rocker arm will result in the valve （）<br>A:having a shorter duration of opening<br>B:having a longer duration of opening<br>C:closing sooner<br>D:opening later

Reducing the clearance between a valve stem and rocker arm will result in the valve （）
A:having a shorter duration of opening
B:having a longer duration of opening
C:closing sooner
D:opening later

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