__________ (常言道), the more haste, less speed.

A．Because he enjoys the music.
B．In order to see the concert.
C．To lose weight.
D．For exercise.

A．he was unkind to the nurses
B．he ignored the importance of mothering to the infant
C．he wanted to prove that children are born with the ability to speak
D．he wanted to see if the children would die before they reached the age of one