16．We can learn a Jot by observing the position in which a mother holds her baby against her body．
A．Right
B．Wrong
C．Not mentioned
17．Most left-handed women feel comfortable by holding their babies in their left arm and keep the right arm free．
A．Right
B．Wrong
C．Not mentioned
18．The number of right-handed mothers who hold the baby on the left side exceeds that of left-handed ones by 22％．
A．Right
B．Wrong
C．Not mentioned
19．The fact that most left-handed mothers hold the baby on their left side renders the first explanation unsustainable．
A．Right
B．Wrong
C．Not mentioned
20．The fact that the heart is on the left side of the mother’s body provides the most convincing explanation of all．
A．Right
B．Wrong
C．Not mentioned
21．A baby held in the right arm of its mother can be easily frightened．
A．Right
B．Wrong
C．Not mentioned
22．The writer’s explanation of the phenomenon is supported by the fact that babies tend to be more peaceful if held in their mothers’left arms than in the right arms．
A．Right
B．Wrong
C．Not mentioned