Which of the following statement about the book Dr. Spock’s Baby and Child Care is true?

New parents are always worried that they might be making a mistake with their new baby. The baby cries and they don’t know if they should let him cry or pick him up. The baby is sick and they don’t know what to do. "Trust yourself, you know more than you think you do. "Benjamin Spock wrote in his famous book Dr. Spock’s Baby and Child Care, which first appeared in 1946. This book has sold over 50 million copies, making it the biggest selling .book after the Bible. In fact, many parents say that it is parents "Bible" for raising children. Before Dr. Spock’s book appeared, experts told parents that they should avoid showing their children affections. They told parents to break, children of bad habits. They also told parents that they need to feed children on a rigid schedule. Spock disagreed with this rigid manner of raising children and decided that he would write a book. "I wanted to be supportive of parents rather than scold them. "Dr. Spock said, "every baby needs to be smiled at, talked to, played with gently and lovingly. Be natural and enjoy your baby. "Dr. Spock never imagined that his book would become so popular. The last edition came out in 1998, a few months after his death at age 94. He will be remembered for his common sense advice. Respect children because they deserve respect and they’ll grow up to be better people.