A.No reason can explain why some people are left-handed.B.Difference in gender and nationality is the concerned factor.C.The culture may cause some people to use left-hands.D.Ninety percent of people will naturally use their right hands.
A.No reason can explain why some people are left-handed.
B.Difference in gender and nationality is the concerned factor.
C.The culture may cause some people to use left-hands.
D.Ninety percent of people will naturally use their right hands.