A．Studying the previous data．
B．Questioning the subjects.
C．Observing people's behavior.
D．Seeking online feedbacks.

A．People can still feel the pain and misery.
B．People begin to be longing for companions．
C．People can develop coping strategies.
D．People realize their partners' good virtues.

A．It's usually more complicated when kids are involved.
B．The process of divorce adds more pains to people.
C．The sense of relief can only be reached after sadness wears off.
D．Marriage is usually a more serious commitment.