Opening and closing of the valves in relation to the position of piston and flywheel is called ?
AValve lead
BValve lag
CValve overlap
DValve timing
AValve lead
BValve lag
CValve overlap
DValve timing
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സൂര്യഗ്രഹണത്തിനു കാരണമാവുന്ന ശരിയായ ക്രമീകരണം കണ്ടെത്തുക.