Mark the following statements about the stages of labor as
 
true or false. If a statement is false, correct it to make a true
statement.
a. The dilation stage is the time from the onset of labor until the
cervix is fully expanded.
b. The placental stage is the time after delivery of the infant
when the placenta and the attached fetal extraembryonic
membranes are delivered.
c. The dilation stage of labor is usually longer than the expulsion
or placental stages.