Anurse in the antepartum clinic is assessing a client's adaptation to pregnancy. the client states that she is, "happy one minute and crying the next." the nurse should interpret the client's statement as an indication of which of the following?

a. the nurse should recognize and interpret the client's statement as an indication of emotional lability.
b. many women experience rapid and unpredictable changes in mood during pregnancy.
c. intense hormonal changes may be responsible for mood changes that occur during pregnancy.
d. tears and anger alternate with feelings of joy or cheerfulness for little or no reason.